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Professor

Bretthauer, Michael

Department of Clinical Medicine
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  • Mori, Yuichi; Neumann, Helmut; Misawa, Masashi; Kudo, Shin-Ei; Bretthauer, Michael. Artificial intelligence in colonoscopy - Now on the market. What's next?. Journal of Gastroenterology and Hepatology 2021; Volum 36. ISSN 0815-9319.s 7 - 11.s doi: 10.1111/jgh.15339.

  • Wieszczy, Paulina; Kaminski, Michal F; Løberg, Magnus; Bugajski, Marek; Bretthauer, Michael; Kalager, Mette. Estimation of overdiagnosis in colorectal cancer screening with sigmoidoscopy and faecal occult blood testing: Comparison of simulation models. BMJ Open 2021; Volum 11 (4). ISSN 2044-6055.s 1 - 10.s doi: 10.1136/bmjopen-2020-042158.

  • Zeng, Linan; Helsingen, Lise M.; Nampo, Fernando Kenji; Wang, Yuting; Yao, Linag; Siemieniuk, Reed Alexander; Bretthauer, Michael; Guyatt, Gordon H. How do cancer screening guidelines trade off benefits versus harms and burdens of screening? A systematic survey. BMJ Open 2020. ISSN 2044-6055.s doi: http://dx.doi.org/10.1136/bmjopen-2020-038322.

  • Zimmermann-Fraedrich, Katharina; Pohl, Heiko; Rösch, Thomas; Rex, Douglas; Hassan, Cecare; Dekker, Evelien; Kamiński, Michał Filip; Bretthauer, Michael; de Heer, Jocelyn; Werner, Yuki; Schachschal, Guido; Groth, Stefan. Designs of colonoscopic adenoma detection trials: more positive results with tandem than with parallel studies - an analysis of studies on imaging techniques and mechanical devices. Gut 2020. ISSN 0017-5749.s doi: http://dx.doi.org/10.1136/gutjnl-2020-320984.

  • Spadaccini, Marco; Frazzoni, Leonardo; Vanella, Giuseppe; East, James; Radaelli, Franco; Spada, Cristiano; Fuccio, Lorenzo; Benamouzig, Robert; Bisschops, Raf; Bretthauer, Michael; Dekker, Evelien; Dinis-Ribeiro, Mario; Ferlitsch, Monika; Gralnek, Ian; Jover, Rodrigo; Kamiński, Michał Filip; Pellisé, Maria; Triantafyllou, Konstantinos; Van Hooft, Jeanin E.; Dumonceau, Jean-Marc; Marmo, Clelia; Alfieri, Sergio; Chandrasekar, Viveksandeep Thoguluva; Sharma, Prateek; Rex, Doug K.; Repici, Alessandro; Hassan, Cesare. Efficacy and tolerability of high- vs low-volume split-dose bowel cleansing regimens for colonoscopy: A systematic review and meta-analysis. Clinical Gastroenterology and Hepatology 2020; Volum 18 (7). ISSN 1542-3565.s 1454 - 1465.s doi: 10.1016/j.cgh.2019.10.044.

  • Mori, Yuichi; Kudo, Shin-Ei; East, James; Rastogi, Amit; Bretthauer, Michael; Misawa, Masashi; Sekiguchi, Masau; Matsuda, Takahisa; Saito, Yutaka; Ikematsu, Hiroaki; Hotta, Kinichi; Ohtsuka, Kazuo; Kudo, Toyoki; Mori, Kensaku. Cost savings in colonoscopy with artificial intelligence-aided polyp diagnosis: an add-on analysis of a clinical trial (with video). Gastrointestinal Endoscopy 2020; Volum 92 (4). ISSN 0016-5107.s 905 - 911.s doi: 10.1016/j.gie.2020.03.3759.

  • Tønnesen, Christer Julseth; Young, Juliet; Glomsaker, Tom Birger; Mala, Tom; Løberg, Magnus; Bretthauer, Michael; Refsum, Erle; Aabakken, Lars. Laparoscopy-assisted versus balloon enteroscopy-assisted ERCP after Roux-en-Y gastric bypass. Endoscopy 2020; Volum 52 (8). ISSN 0013-726X.s 654 - 661.s doi: 10.1055/a-1139-9313.

  • Helsingen, Lise M.; Zeng, Linan; Siemieniuk, Reed A.C.; Lytvyn, Lyubov; Vandvik, Per Olav; Agoritsas, Thomas; Bretthauer, Michael; Guyatt, Gordon. Establishing thresholds for important benefits considering the harms of screening interventions. BMJ Open 2020; Volum 10:e037854 (12). ISSN 2044-6055.s 1 - 9.s doi: 10.1136/bmjopen-2020-037854.

  • Hassan, Cesare; Antonelli, Giulio; Dumonceau, Jean-Marc; Regula, Jaroslaw; Bretthauer, Michael; Chaussade, Stanislas; Dekker, Evelien; Ferlitsch, Monika; Gimeno-Garcia, Antonio; Jover, Rodrigo; Kalager, Mette; Pellisé, Maria; Pox, Christian; Ricciardiello, Luigi; Rutter, Matthew D.; Helsingen, Lise M.; Bleijenberg, Arne; Senore, Carlo; Van Hooft, Jeanin E.; Dinis-Ribeiro, Mario; Quintero, Enrique. Post-polypectomy colonoscopy surveillance: European Society of Gastrointestinal Endoscopy (ESGE) Guideline - Update 2020. Endoscopy 2020; Volum 52 (8). ISSN 0013-726X.s 687 - 700.s doi: 10.1055/a-1185-3109.

  • Barua, Ishita; Mori, Yuichi; Bretthauer, Michael. Colorectal polyp characterization with endocytoscopy: Ready for widespread implementation with artificial intelligence?. Baillière's Best Practice & Research : Clinical Gastroenterology 2020. ISSN 1521-6918.s doi: https://doi.org/10.1016/j.bpg.2020.101721.

  • Randel, Kristin Ranheim; Schult, Anna Lisa; Botteri, Edoardo; Hoff, Geir; Bretthauer, Michael; Ursin, Giske; Natvig, Erik; Berstad, Paula; Jørgensen, Anita; Sandvei, Per; Olsen, Marie Kristin Ek; Frigstad, Svein Oskar; Darre-Næss, Ole; Norvard, Espen; Bolstad, Nils; Kørner, Hartwig; Wibe, Arne; Wensaas, Knut-Arne; de Lange, Thomas; Holme, Øyvind. Colorectal cancer screening with repeated fecal immunochemical test versus sigmoidoscopy: baseline results from a randomized trial. Gastroenterology 2020; Volum 160 (4). ISSN 0016-5085.s 1085 - 1096.s doi: 10.1053/j.gastro.2020.11.037.

  • Helsingen, Lise M.; Refsum, Erle; Gjøstein, Dagrun Kyte; Løberg, Magnus; Bretthauer, Michael; Kalager, Mette; Emilsson, Louise. The COVID-19 pandemic in Norway and Sweden – threats, trust, and impact on daily life: a comparative survey. BMC Public Health 2020; Volum 20:1597. ISSN 1471-2458.s 1 - 10.s doi: 10.1186/s12889-020-09615-3.

  • Pedersen, Ina Borgenheim; Bretthauer, Michael; Kalager, Mette; Løberg, Magnus; Hoff, Geir; Matapour, Senaria; Hugin, Silje Hee; Frigstad, Svein Oskar; Seip, Birgitte Karen Berggreen; Kleist, Britta; Løvdal, Leif; Botteri, Edoardo; Holme, Øyvind. Incomplete endoscopic resection of colorectal polyps: a prospective quality assurance study. Endoscopy 2020. ISSN 0013-726X.s 1 - 9.s doi: 10.1055/a-1243-0379.

  • Adami, Hans Olov; Bretthauer, Michael; Kalager, Mette. Assessment of cancer screening effectiveness in the era of screening programs. European Journal of Epidemiology (EJE) 2020. ISSN 0393-2990.s doi: 10.1007/s10654-020-00684-7.

  • Barua, Ishita; Guerrero Vinsard, Daniela; Jodal, Henriette C.; Løberg, Magnus; Kalager, Mette; Holme, Øyvind; Masashi, Misawa; Bretthauer, Michael; Mori, Yuichi. Artificial intelligence for polyp detection during colonoscopy: A systematic review and meta-analysis. Endoscopy 2020. ISSN 0013-726X.s doi: 10.1055/a-1201-7165.

  • Hoff, Geir; de Lange, Thomas; Bretthauer, Michael; Dahler, Stein; Halvorsen, Fred-Arne; Huppertz-Hauss, Gert; Høie, Ole Ingebreth; Kjellevold, Øystein; Moritz, Volker; Sandvei, Per; Seip, Birgitte Karen Berggreen; Holme, Øyvind. Registration bias in a clinical quality register. Endoscopy International Open 2019; Volum 7 (1). ISSN 2196-9736.s E90 - E98.s doi: 10.1055/a-0806-7006.

  • Wieszczy, Paulina; Kamiński, Michał Filip; Franczyk, Robert; Løberg, Magnus; Kobiela, Jarek; Rupinska, Maria; Kocot, Bartlomiej; Rupinski, Maciej; Holme, Øyvind; Wojciechowska, Urszula; Didkowska, Joanna; Ransohoff, David F.; Bretthauer, Michael; Kalager, Mette; Regula, Jaroslaw. Colorectal Cancer Incidence and Mortality After Removal of Adenomas During Screening Colonoscopies. Gastroenterology 2019; Volum 158 (4). ISSN 0016-5085.s 875 - 883.s doi: 10.1053/j.gastro.2019.09.011.

  • Hassan, Cesare; East, James; Radaelli, Franco; Spada, Cristiano; Benamouzig, Robert; Bisschops, Raf; Bretthauer, Michael; Dekker, E; Dinis-Ribeiro, Mario; Ferlitsch, Monika; Fuccio, Lorenzo; Awadie, Halim; Gralnek, Ian; Jover, Rodrigo; Kamiński, Michał Filip; Pellisé, Maria; Triantafyllou, Konstantinos; Vanella, Giuseppe; Mangas-Sanjuan, Carolina; Frazzoni, Leonardo; Van Hooft, Jeanin E.; Dumonceau, Jean-Marc. Bowel preparation for colonoscopy: European Society of Gastrointestinal Endoscopy (ESGE) Guideline – Update 2019. Endoscopy 2019; Volum 51 (8). ISSN 0013-726X.s 775 - 794.s doi: 10.1055/a-0959-0505.

  • Buskermolen, Maaike; Cenin, Dayna R; Helsingen, Lise M.; Guyatt, Gordon; Vandvik, Per Olav; Haug, Ulrike; Bretthauer, Michael; Lansdorp-Vogelaar, Iris. Colorectal cancer screening with faecal immunochemical testing, sigmoidoscopy or colonoscopy: a microsimulation modelling study. BMJ. British Medical Journal 2019; Volum 367. ISSN 1756-1833.s 1 - 11.s doi: 10.1136/bmj.l5383.

  • García-Albéniz, Xabier; Hsu, John; Bretthauer, Michael; Hernán, Miguel A.. Estimating the Effect of Preventive Services With Databases of Administrative Claims: Reasons to Be Concerned. American Journal of Epidemiology 2019; Volum 188 (10). ISSN 0002-9262.s 1764 - 1767.s doi: 10.1093/aje/kwz049.

  • Bleijenberg, Arne; Klotz, Dagmar; Løberg, Magnus; Dekker, Evelien; Adami, Hans Olov; Kuipers, Ernst J.; Holme, Øyvind; Kalager, Mette; Emilsson, Louise; Kleist, Britta; Løvdal, Leif; Régula, Jarosław; Løberg, Else Marit; Ijspeert, Joep; Bretthauer, Michael. Implications of different guidelines for surveillance after serrated polyp resection in United States of America and Europe. Endoscopy 2019; Volum 51 (8). ISSN 0013-726X.s 750 - 758.s doi: 10.1055/a-0916-8598.

  • Helsingen, Lise M.; Vandvik, Per Olav; Jodal, Henriette C.; Agoritsas, Thomas; Lytvyn, Lyubov; Anderson, Joseph C.; Auer, Reto; Murphy, Silje Bjerkelund; Almadi, Majid Abdulrahman; Corley, Douglas A; Quinlan, Casey; Fuchs, Jonathan M.; McKinnon, Annette; Qaseem, Amir; Heen, Anja Fog; Siemieniuk, Reed A.C.; Kalager, Mette; Usher-Smith, Juliet A.; Lansdorp-Vogelaar, Iris; Bretthauer, Michael; Guyatt, Gordon. Colorectal cancer screening with faecal immunochemical testing, sigmoidoscopy or colonoscopy: A clinical practice guideline. (Fulltekst: https://www.bmj.com/content/367/bmj.l5515.long BMJ. British Medical Journal 2019; Volum 367:I5515. ISSN 1756-1833.s 1 - 16.s doi: 10.1136/bmj.l5515.

  • Spada, Cristiano; McNamara, Deirdre; Despott, Edward J.; Adler, Samuel; Cash, Brooks D.; Fernández-Urién, Ignacio; Ivekovic, Hrvoje; Keuchel, Martin; McAlindon, Mark; Saurin, Jean-Christophe; Panter, Simon; Bellisario, Cristina; Minozzi, Silvia; Senore, Carlo; Bennett, Cathy; Bretthauer, Michael; Dinis-Ribeiro, Mario; Domagk, Dirk; Hassan, Cesare; Kamiński, Michał Filip; Rees, Colin J.; Valori, Roland; Bisschops, Raf; Rutter, Matthew D.. Performance measures for small-bowel endoscopy: A European Society of Gastrointestinal Endoscopy (ESGE) Quality Improvement Initiative. United European Gastroenterology journal 2019; Volum 7 (5). ISSN 2050-6406.s 614 - 641.s doi: 10.1177/2050640619850365.

  • Spada, Cristiano; McNamara, Deirdre; Despott, Edward J.; Adler, Samuel; Cash, Brooks D.; Fernández-Urién, Ignacio; Ivekovic, Hrvoje; Keuchel, Martin; McAlindon, Mark; Saurin, Jean-Christophe; Panter, Simon; Bellisario, Cristina; Minozzi, Silvia; Senore, Carlo; Bennett, Cathy; Bretthauer, Michael; Dinis-Ribeiro, Mario; Domagk, Dirk; Hassan, Cesare; Kamiński, Michał Filip; Rees, Colin J.; Valori, Roland; Bisschops, Raf; Rutter, Matthew D.. Performance measures for small-bowel endoscopy: A European Society of Gastrointestinal Endoscopy (ESGE) Quality Improvement Initiative. Endoscopy 2019; Volum 51 (6). ISSN 0013-726X.s 574 - 598.s doi: 10.1055/a-0889-9586.

  • Valori, Roland; Cortas, George; de Lange, Thomas; Salem Balfaqih, Omer; de Pater, Marjon; Eisendrath, Pierre; Falt, Premysl; Koruk, Irfan; Ono, Akiko; Rustemović, Nadan; Schoon, Erik; Veitch, Andrew; Senore, Carlo; Bellisario, Cristina; Minozzi, Silvia; Bennett, Cathy; Bretthauer, Michael; Dinis-Ribeiro, Mario; Domagk, Dirk; Hassan, Cesare; Kamiński, Michał Filip; Rees, Colin J.; Spada, Cristiano; Bisschops, Raf; Rutter, Mathew. Performance measures for endoscopy services: A European Society of Gastrointestinal Endoscopy (ESGE) quality improvement initiative. United European Gastroenterology journal 2019; Volum 7 (1). ISSN 2050-6406.s 21 - 44.s doi: 10.1177/2050640618810242.

  • Bugajski, M; Wieszczy, P; Rupinski, M; Hoff, Geir; Huppertz-Hauss, Gert; Regula, J; Bretthauer, Michael; Kamiński, Michał Filip. Effectiveness of digital feedback on patient experience and 30-day complications after screening colonoscopy: a randomized Health services study. Endoscopy International Open 2019; Volum 7 (4). ISSN 2196-9736.s E537 - E544.s doi: 10.1055/a-0830-4648.

  • Hoff, Geir; Botteri, Edoardo; Høie, Ole Ingebreth; Garborg, Kjetil Kjeldstad; Wiig, Håvard; Huppertz-Hauss, Gert; Moritz, Volker; Bretthauer, Michael; Holme, Øyvind. Polyp detection rates as quality indicator in clinical versus screening colonoscopy. Endoscopy International Open 2019; Volum 7 (2). ISSN 2196-9736.s doi: 10.1055/a-0796-6477.

  • Randel, Kristin Ranheim; Botteri, Edoardo; Romstad, Katrine Maria Kauczynska; Frigstad, Svein Oskar; Bretthauer, Michael; Hoff, Geir; de Lange, Thomas; Holme, Øyvind. Effects of Oral Anticoagulants and Aspirin on Performance of Fecal Immunochemical Tests in Colorectal Cancer Screening. Gastroenterology 2019; Volum 156 (6). ISSN 0016-5085.s 1642 - 1649.e1.s doi: 10.1053/j.gastro.2019.01.040.

  • Valori, Roland; Cortas, George; de Lange, Thomas; Balfaqih, Omer Salem; de Pater, Marjon; Eisendrath, Pierre; Falt, Premysl; Koruk, Irfan; Ono, Akiko; Rustemovic, Nadan; Schoon, Erik; Veitch, Andrew; Senore, Carlo; Bellisario, Cristina; Minozzi, Silvia; Bennett, Cathy; Bretthauer, Michael; Dinis-Ribeiro, Mario; Domagk, Dirk; Hassan, Cesare; Kamiński, Michał Filip; Rees, Colin J.; Spada, Cristiano; Bisschops, Raf; Rutter, Mathew. Performance measures for endoscopy services: A European Society of Gastrointestinal Endoscopy (ESGE) Quality Improvement Initiative. Endoscopy 2018; Volum 50 (12). ISSN 0013-726X.s 1186 - 1204.s doi: 10.1055/a-0755-7515.

  • Domagk, Dirk; Oppong, Kofi W.; Aabakken, Lars; Czakó, László; Gyökeres, Tibor; Manes, Gianpiero; Meier, Peter; Poley, Jan-Werner; Ponchon, Thierry; Tringali, Andrea; Bellisario, Cristina; Minozzi, Silvia; Senore, Carlo; Bennett, Cathy; Bretthauer, Michael; Hassan, Cesare; Kamiński, Michał Filip; Dinis-Ribeiro, Mario; Rees, Colin J.; Spada, Cristiano; Valori, Roland; Bisschops, Raf; Rutter, Matthew D.. Performance measures for endoscopic retrograde cholangiopancreatography and endoscopic ultrasound: A European Society of Gastrointestinal Endoscopy (ESGE) Quality Improvement Initiative. United European Gastroenterology journal 2018; Volum 6 (10). ISSN 2050-6406.s 1448 - 1460.s doi: 10.1177/2050640618808157.

  • Adami, Hans Olov; Kalager, Mette; Valdimarsdottir, U; Bretthauer, Michael; Ioannidis, JPA. Time to abandon early detection cancer screening.. European Journal of Clinical Investigation 2018; Volum 49 (3). ISSN 0014-2972.s doi: 10.1111/eci.13062.

  • Kalager, Mette; Wieszczy, Paulina; Lansdorp-Vogelaar, I; Corley, Douglas; Bretthauer, Michael; Kamiński, Michał Filip. Overdiagnosis in Colorectal Cancer Screening: Time to Acknowledge a Blind Spot.. Gastroenterology 2018; Volum 155 (3). ISSN 0016-5085.s 592 - 595.s doi: 10.1053/j.gastro.2018.07.037.

  • Bretthauer, Michael; Lauby-Secretan, B; Vilahur, Nadia; Bianchini, Franca; Guha, N; Straif, K; Pinsky, Paul F.; Blom, J; Rabeneck, L; Smith, RA; alhomoud, s; Corley, Douglas; Forman, D; Garcia, M; Hoffmeister, M; Hultcrantz, R; Lansdorp-Vogelaar, I; Nagtegaal, Iris; Sangrajrang, S; Sung, JJY; Zauber, AG; Robertson, David; Senore, C. The IARC Perspective on Colerectal Cancer Screening.. New England Journal of Medicine 2018; Volum 378 (18). ISSN 0028-4793.s 1734 - 1740.s doi: 10.1056/NEJMsr1714643.

  • Domagk, Dirk; Oppong, Kofi W.; Aabakken, Lars; Czakó, László; Gyökeres, Tibor; Manes, Gianpiero; Meier, Peter; Poley, Jan-Werner; Ponchon, Thierry; Tringali, Andrea; Bellisario, Cristina; Minozzi, Silvia; Senore, Carlo; Bennett, Cathy; Bretthauer, Michael; Hassan, Cesare; Kamiński, Michał Filip; Dinis-Ribeiro, Mário; Rees, Colin J.; Spada, Cristiano; Valori, Roland; Bisschops, Raf; Rutter, Matthew D.. Performance measures for ERCP and endoscopic ultrasound: A European Society of Gastrointestinal Endoscopy (ESGE) Quality Improvement Initiative. Endoscopy 2018; Volum 50 (11). ISSN 0013-726X.s 1116 - 1127.s doi: 10.1055/a-0749-8767.

  • Jodal, Henriette Cecilie; Løberg, Magnus; Holme, Øyvind; Adami, Hans Olov; Bretthauer, Michael; Emilsson, Louise; Ransohoff, David F.; Hoff, Geir; Kalager, Mette. Mortality from post-screening (interval) colorectal cancers is comparable to that from cancer in unscreened patients-a randomized sigmoidoscopy trial. Gastroenterology 2018; Volum 155 (6). ISSN 0016-5085.s 1787 - 1794.s doi: 10.1053/j.gastro.2018.08.035.

  • Bretthauer, Michael; Goderstad, Jeanne Mette; Løberg, Magnus; Emilsson, Louise; Ye, Weimin; Adami, Hans Olov; Kalager, Mette. Uterine morcellation and survival in uterine sarcomas. European Journal of Cancer 2018; Volum 101. ISSN 0959-8049.s 62 - 68.s doi: 10.1016/j.ejca.2018.06.007.

  • Juul, Frederik Emil; Garborg, Kjetil Kjeldstad; Bretthauer, Michael; Skudal, Hilde Kristin; Oines, Mari N.; Wiig, Håvard; Rose, Øystein; Seip, Birgitte Karen Berggreen; Thomas Lamont, J.; Midtvedt, Tore; Valeur, Jørgen; Kalager, Mette; Holme, Øyvind; Helsingen, Lise M.; Løberg, Magnus; Adami, Hans Olov. Fecal microbiota transplantation for primary Clostridium difficile infection. New England Journal of Medicine 2018; Volum 378 (26). ISSN 0028-4793.s 2535 - 2537.s doi: 10.1056/NEJMc1803103.

  • Pinsky, Paul F.; Løberg, Magnus; Senore, Carlo; Wooldrage, Kate; Atkin, Wendy S.; Bretthauer, Michael; Cross, Amanda J; Hoff, Geir; Holme, Øyvind; Kalager, Mette; Segnan, Nereo; Schoen, Robert E.. Number of Adenomas Removed and Colorectal Cancers Prevented in Randomized Trials of Flexible Sigmoidoscopy Screening. Gastroenterology 2018; Volum 155 (4). ISSN 0016-5085.s 1059 - 1068.s doi: 10.1053/j.gastro.2018.06.040.

  • Holme, Øyvind; Løberg, Magnus; Kalager, Mette; Bretthauer, Michael; Hernán, Miguel A.; Aas, Eline; Eide, Tor Jacob; Skovlund, Eva; Lekven, Jon; Schneede, Jørn; Tveit, Magne Kjell; Vatn, Morten H; Ursin, Giske; Hoff, Geir. Long-term effectiveness of sigmoidoscopy screening on colorectal cancer incidence and mortality in women and men: A randomized trial. Annals of Internal Medicine 2018; Volum 168 (11). ISSN 0003-4819.s 775 - 782.s doi: 10.7326/M17-1441.

  • Pedersen, Ina Borgenheim; Løberg, Magnus; Hoff, Geir; Kalager, Mette; Bretthauer, Michael; Holme, Øyvind. Polypectomy techniques among gastroenterologists in Norway – a nationwide survey. Endoscopy International Open 2018; Volum 6 (7). ISSN 2196-9736.s doi: 10.1055/a-0607-0727.

  • Holme, Øyvind; Pedersen, Ina Borgenheim; Medhus, Asle Wilhelm; Aabakken, Lars; Glomsaker, Tom Birger; Kvamme, Jan-Magnus; Løberg, Magnus; Bretthauer, Michael; Seip, Birgitte Karen Berggreen; Kjellevold, Øystein; Jørgensen, Anita; Furholm, Siv; Hoff, Geir; de Lange, Thomas. Endoscopy assistants influence the quality of colonoscopy. Endoscopy 2018; Volum 50 (9). ISSN 0013-726X.s 871 - 877.s doi: 10.1055/s-0044-101706.

  • Emilsson, Louise; Holme, Øyvind; Bretthauer, Michael; Cook, Nancy R.; Buring, Julie E.; Løberg, Magnus; Adami, Hans Olov; Sesso, Howard D.; Gaziano, Mike; Kalager, Mette. Systematic review with meta-analysis: the comparative effectiveness of aspirin vs. screening for colorectal cancer prevention. Alimentary Pharmacology and Therapeutics 2017; Volum 45 (2). ISSN 0269-2813.s 193 - 204.s doi: 10.1111/apt.13857.

  • Garborg, Kjetil Kjelstad; de Lange, Thomas; Bretthauer, Michael. Quality Indicators in Colonoscopy. Curr Treat Options Gastroenterol 2017; Volum 15 (3). ISSN 1092-8472.s 416 - 428.s doi: 10.1007/s11938-017-0140-4.

  • Brandrud, Aleidis Esther Skard; Nyen, Bjørnar; Hjortdahl, Per; Sandvik, Leiv; Helljesen Haldorsen, Gro Sævil; Bergli, Maria; Nelson, Eugene C.; Bretthauer, Michael. Domains associated with successful quality improvement in healthcare - A nationwide case study. BMC Health Services Research 2017; Volum 17 (1). ISSN 1472-6963.s doi: 10.1186/s12913-017-2454-2.

  • Brandrud, Aleidis Esther Skard; Bretthauer, Michael; Brattebø, Guttorm; Pedersen, May Janne Botha; Håpnes, Kent; Møller, Karin; Bjørge, Trond; Nyen, Bjørnar; Strauman, Lars; Schreiner, Ada; Haldorsen, Gro S.; Bergli, Maria; Nelson, Eugene; Morgan, Tamara S.; Hjortdahl, Per. Local emergency medical response after a terrorist attack in Norway: A qualitative study. BMJ Quality and Safety 2017; Volum 26 (10). ISSN 2044-5415.s 806 - 816.s doi: 10.1136/bmjqs-2017-006517.

  • Emilsson, Louise; Løberg, Magnus; Bretthauer, Michael; Holme, Øyvind; Fall, Katja; Jodal, Henriette Cecilie; Adami, Hans Olov; Kalager, Mette. Colorectal cancer death after adenoma removal in Scandinavia. Scandinavian Journal of Gastroenterology 2017; Volum 52 (12). ISSN 0036-5521.s 1377 - 1384.s doi: 10.1080/00365521.2017.1377763.

  • Øines, Mari Nanna; Helsingen, Lise M.; Bretthauer, Michael; Emilsson, Louise. Epidemiology and risk factors of colorectal polyps. Baillière's Best Practice & Research : Clinical Gastroenterology 2017; Volum 31 (4). ISSN 1521-6918.s 419 - 424.s doi: 10.1016/j.bpg.2017.06.004.

  • Kaminski, Michal Filip; Thomas-Gibson, Siwan; Bugajski, Marek; Bretthauer, Michael; Rees, Colin J.; Dekker, Evelien; Hoff, Geir; Jover, Rodrigo; Suchanek, Stepan; Ferlitsch, Monika; Anderson, John; Röesch, Thomas; Hultcranz, Rolf; Racz, Istvan; Kuipers, Ernst J.; Garborg, Kjetil Kjeldstad; East, James E.; Rupinski, Maciej; Seip, Birgitte Karen Berggreen; Bennett, Cathy; Senore, Carlo; Minozzi, Silvia; Bisschops, Raf; Domagk, Dirk; Valori, Roland; Spada, Cristiano; Hassan, Cesare; Dinis-Ribeiro, Mario; Rutter, Matthew D.. Performance measures for lower gastrointestinal endoscopy: a European Society of Gastrointestinal Endoscopy (ESGE) quality improvement initiative. United European Gastroenterology journal 2017; Volum 5 (3). ISSN 2050-6406.s 309 - 334.s doi: 10.1177/2050640617700014.

  • de Lange, Thomas; Randel, Kristin Ranheim; Schult, Anna Lisa; Knudsen, Markus Dines; Kirkøen, Benedicte; Botteri, Edoardo; Berstad, Paula Marianna; Jørgensen, Anita; Ursin, Giske; Bretthauer, Michael; Hoff, Geir. Sigmoidoskopi og testing for blod i avføringen - En sammenlignende screeningstudie. Tidsskrift for Den norske legeforening 2017; Volum 137 (10). ISSN 0029-2001.s 727 - 730.s doi: 10.4045/tidsskr.16.1031.

  • Hoff, Geir; Holme, Øyvind; Bretthauer, Michael; Sandvei, Per; Darre-Næss, Ole; Stallemo, Asbjørn; Wiig, Håvard; Høie, Ole Ingebreth; Noraberg, Geir; Moritz, Volker; de Lange, Thomas. Cecum intubation rate as quality indicator in clinical versus screening colonoscopy. Endoscopy International Open 2017; Volum 5 (6). ISSN 2196-9736.s E489 - E495.s doi: 10.1055/s-0043-106180.

  • Hoff, Geir; de Lange, Thomas; Bretthauer, Michael; Buset, Magne; Dahler, Stein; Halvorsen, Fred-Arne; Halwe, Jörg Michael; Heibert, Mathis; Høie, Ole Ingebreth; Kjellevold, Øystein; Moritz, Volker; Sandvei, Per; Seip, Birgitte Karen Berggreen; Aabakken, Lars; Holme, Øyvind. Patient-reported adverse events after colonoscopy in Norway. Endoscopy 2017; Volum 49 (8). ISSN 0013-726X.s 745 - 753.s doi: 10.1055/s-0043-105265.

  • Kaminski, Michal Filip; Thomas-Gibson, Siwan; Bugajski, Marek; Bretthauer, Michael; Rees, Colin J.; Dekker, Evelien; Hoff, Geir; Jover, Rodrigo; Suchanek, Stepan; Ferlitsch, Monika; Anderson, John; Roesch, Thomas; Hultcranz, Rolf; Racz, Istvan; Kuipers, Ernst J.; Garborg, Kjetil Kjeldstad; East, James E; Rupinski, Maciej; Seip, Birgitte Karen Berggreen; Bennett, Cathy; Senore, Carlo; Minozzi, Silvia; Bisschops, Raf; Domagk, Dirk; Valori, Roland; Spada, Cristiano; Hassan, Cesare; Dinis-Ribeiro, Mario; Rutter, Matthew D.. Performance measures for lower gastrointestinal endoscopy: a European Society of Gastrointestinal Endoscopy (ESGE) Quality Improvement Initiative. Endoscopy 2017; Volum 49 (4). ISSN 0013-726X.s 378 - 397.s doi: 10.1055/s-0043-103411.

  • Holme, Øyvind; Schoen, Robert E.; Senore, Carlo; Segnan, Nereo; Hoff, Geir; Løberg, Magnus; Bretthauer, Michael; Adami, Hans Olov; Kalager, Mette. Effectiveness of flexible sigmoidoscopy screening in men and women and different age groups: Pooled analysis of randomised trials. BMJ. British Medical Journal 2017; Volum 356. ISSN 1756-1833.s doi: 10.1136/bmj.i6673.

  • García-Albéniz, Xabier; Hsu, John; Bretthauer, Michael; Hernan, Miguel A.. Effectiveness of Screening Colonoscopy to Prevent Colorectal Cancer Among Medicare Beneficiaries Aged 70 to 79 Years: A Prospective Observational Study.. Annals of Internal Medicine 2017; Volum 166 (1). ISSN 0003-4819.s 18 - 26.s doi: 10.7326/M16-0758.

  • Adami, Hans Olov; Csermely, Peter; Veres, DV; Emilsson, Louise; Løberg, Magnus; Bretthauer, Michael; Kalager, Mette. Are rapidly growing cancers more lethal?. European Journal of Cancer 2017; Volum 72. ISSN 0959-8049.s 210 - 214.s doi: 10.1016/j.ejca.2016.11.011.

  • Garborg, Kjetil Kjeldstad; Wiig, Håvard; Hasund, Audun; Matre, Jon; Holme, Øyvind; Noraberg, Geir; Løberg, Magnus; Kalager, Mette; Adami, Hans Olov; Bretthauer, Michael. Gradual stiffness versus magnetic imaging-guided variable stiffness colonoscopes: A randomized noninferiority trial. United European Gastroenterology journal 2017; Volum 5 (1). ISSN 2050-6406.s 128 - 133.s doi: 10.1177/2050640616639162.

  • Moritz, Volker; Bretthauer, Michael; Holme, Øyvind; Fagerland, Morten; Løberg, Magnus; Glomsaker, Tom Birger; de Lange, Thomas; Seip, Birgitte Karen Berggreen; Sandvei, Per; Hoff, Geir. Time trends in quality indicators of colonoscopy. United European Gastroenterology journal 2016; Volum 4 (1). ISSN 2050-6406.s 110 - 120.s doi: 10.1177/2050640615570147.

  • Rees, Colin J.; Bevan, Roisin; Zimmermann-Fraedrich, Katharina; Rutter, Matthew D.; Rex, Douglas Kevin; Dekker, Evelien; Ponchon, Thierry; Bretthauer, Michael; Regula, Jaroslaw; Saunders, Brian; Hassan, Cesare; Bourke, Michael J.; Rösch, Thomas. Expert opinions and scientific evidence for colonoscopy key performance indicators.. Gut 2016; Volum 65 (12). ISSN 0017-5749.s 2045 - 2060.s doi: 10.1136/gutjnl-2016-312043.

  • Bretthauer, Michael; Aabakken, Lars; Dekker, Evelien; Kaminski, Michal Filip; Rösch, Thomas; Hultcrantz, Rolf; Suchanek, Stepan; Jover, Rodrigo; Kuipers, Ernst J.; Bisschops, Raf; Spada, Cristiano; Valori, Roland; Domagk, Dirk; Rees, Colin; Rutter, Matthew D.. Reporting systems in gastrointestinal endoscopy: Requirements and standards facilitating quality improvement: European society of gastrointestinal endoscopy position statement. United European Gastroenterology journal 2016; Volum 4 (2). ISSN 2050-6406.s 172 - 176.s doi: 10.1177/2050640616629079.

  • Gjøstein, Dagrun Kyte; Huitfeldt, Anders; Løberg, Magnus; Adami, Hans Olov; Garborg, Kjetil Kjeldstad; Kalager, Mette; Bretthauer, Michael. Incentiver og deltagelse i en medisinsk spørreundersøkelse. Tidsskrift for Den norske legeforening 2016; Volum 136 (12-13). ISSN 0029-2001.s 1082 - 1087.s doi: 10.4045/tidsskr.15.1096.

  • Rees, Colin J.; Ngu, Wee Sing; Regula, Jaroslaw; Bisschops, Raf; Saftoiu, Adrian; Dekker, Evelien; Gralnek, Ian; Ciocirlan, Mihai; Dinis-Ribeiro, Mario; Jover, Rodrigo; Meisner, Søren; Spada, Cristiano; Hassan, Cesare; Valori, Roland; Hucl, Tomas; Le Moine, Olivier; Domagk, Dirk; Kaminski, Michal Filip; Bretthauer, Michael; Rutter, Matthew D.; Aabakken, Lars; Ponchon, Thierry; Fockens, Paul; Siersema, Peter D.. European Society of Gastrointestinal Endoscopy - Establishing the key unanswered research questions within gastrointestinal endoscopy. Endoscopy 2016; Volum 48 (10). ISSN 0013-726X.s 884 - 891.s doi: 10.1055/s-0042-110398.

  • Bisschops, Raf; Areia, Miguel; Coron, Emmanuel; Dobru, Daniela; Kaskas, Bernd; Kuvaev, Roman; Pech, Oliver; Ragunath, Krish; Weusten, Bas; Familiari, Pietro; Domagk, Dirk; Valori, Roland; Kaminski, Michal Filip; Spada, Cristiano; Bretthauer, Michael; Bennett, Cathy; Senore, Carlo; Dinis-Ribeiro, Mário; Rutter, Matthew D.. Performance measures for upper gastrointestinal endoscopy: A European Society of Gastrointestinal Endoscopy quality improvement initiative. United European Gastroenterology journal 2016; Volum 4 (5). ISSN 2050-6406.s 629 - 656.s doi: 10.1177/2050640616664843.

  • Bisschops, Raf; Areia, Miguel; Coron, Emmanuel; Dobru, Daniela; Kaskas, Bernd; Kuvaev, Roman; Pech, Oliver; Ragunath, Krish; Weusten, Bas; Familiari, Pietro; Domagk, Dirk; Valori, Roland; Kaminski, Michal Filip; Spada, Cristiano; Bretthauer, Michael; Bennett, Cathy; Senore, Carlo; Dinis-Ribeiro, Mário; Rutter, Matthew D.. Performance measures for upper gastrointestinal endoscopy: A European Society of Gastrointestinal Endoscopy (ESGE) Quality Improvement Initiative. Endoscopy 2016; Volum 48 (9). ISSN 0013-726X.s 843 - 864.s doi: 10.1055/s-0042-113128.

  • Berstad, Paula Marianna; Botteri, Edoardo; Larsen, Inger Kristin; Løberg, Magnus; Kalager, Mette; Holme, Øyvind; Bretthauer, Michael; Hoff, Geir. Lifestyle changes at middle age and mortality: A population-based prospective cohort study. Journal of Epidemiology and Community Health 2016; Volum 71 (1). ISSN 0143-005X.s 59 - 66.s doi: 10.1136/jech-2015-206760.

  • Adami, Hans Olov; Bretthauer, Michael; Emilsson, Louise; Hernan, Miguel A.; Kalager, Mette; Ludvigsson, Jonas F.; Ekbom, Anders. The continuing uncertainty about cancer risk in inflammatory bowel disease. Gut 2016; Volum 65 (6). ISSN 0017-5749.s 889 - 893.s doi: 10.1136/gutjnl-2015-311003.

  • Bretthauer, Michael; Aabakken, Lars; Dekker, Evelien; Kaminski, Michal Filip; Rösch, Thomas; Hultcrantz, Rolf; Suchanek, S; Jover, Rodrigo; Kuipers, Ernst J.; Bisschops, Raf; Valori, R; Domagk, Dirk; Rees, Colin; Rutter, Matthew D.; Spada, Cristiano. Requirements and standards facilitating quality improvement for reporting systems in gastrointestinal endoscopy: European Society of Gastrointestinal Endoscopy (ESGE) Position Statement. Endoscopy 2016; Volum 48 (3). ISSN 0013-726X.s 291 - 294.s doi: 10.1055/s-0042-100186.

  • Garborg, Kjetil Kjeldstad; Bretthauer, Michael. Cecal intubation failure: Refer or change technique?. Gastrointestinal Endoscopy 2016; Volum 83 (6). ISSN 0016-5107.s 1245 - 1247.s doi: 10.1016/j.gie.2015.12.014.

  • Bretthauer, Michael; Kaminski, Michal Filip; Løberg, Magnus; Zauber, Ann G.; Regula, Jaroslaw; Kuipers, Ernst J.; Hernan, Miguel A.; McFadden, Elenaor; Sunde, Annike; Kalager, Mette; Dekker, Evelien; Lansdorp-Vogelaar, Iris; Garborg, Kjetil Kjeldstad; Rupinski, Maciej; Spaander, Manon C.W.; Bugajski, Marek; Høie, Ole Ingebreth; Stefansson, Tryggvi; Hoff, Geir; Adami, Hans Olov. Population-Based colonoscopy screening for colorectal cancer : A randomized clinical trial. JAMA Internal Medicine 2016; Volum 176 (7). ISSN 2168-6106.s 894 - 902.s doi: 10.1001/jamainternmed.2016.0960.

  • Holme, Øyvind; de Lange, Thomas; Stallemo, Asbjørn; Wiig, Håvard; Hasund, Audun; Dvergsnes, Katrine; Garborg, Kjetil Kjeldstad; Ystrøm, Carl Magnus; Løberg, Magnus; Hoff, Geir; Bretthauer, Michael; Kalager, Mette. Routine vs. on-demand analgesia in colonoscopy: a randomized clinical trial. Endoscopy 2016; Volum 48 (09). ISSN 0013-726X.s 823 - 828.s doi: 10.1055/s-0042-108433.

  • Jover, Rodrigo; Bretthauer, Michael; Dekker, Evelien; Holme, Øyvind; Kaminski, Michal Filip; Løberg, Magnus; Zauber, AG; Hernan, Miguel A.; Lansdorp-Vogelaar, I; Sunde, Annike; McFadden, Elenaor; Castells, A; Regula, Jaroslaw; Quintero, Enrique; Pellise, Maria; Senore, Carlo; Kalager, Mette; Dinis-Ribeiro, Mario; Emilsson, Louise; Ransohoff, David F.; Hoff, Geir; Adami, Hans Olov. Rationale and design of the European Polyp Surveillance (EPoS) trials. Endoscopy 2016; Volum 48 (6). ISSN 0013-726X.s 571 - 578.s doi: 10.1055/s-0042-104116.

  • Rutter, Matthew D.; Senore, Carlo; Bisschops, Raf; Domagk, Dirk; Valori, Roland; Kaminski, Michal Filip; Spada, Cristiano; Bretthauer, Michael; Bennett, Cathy; Bellisario, Cristina; Minozzi, Silvia; Hassan, Cesare; Rees, Colin; Dinis-Ribeiro, Mário; Hucl, Tomas; Ponchon, Thierry; Aabakken, Lars; Fockens, Paul. The European Society of Gastrointestinal Endoscopy Quality Improvement Initiative: developing performance measures. United European Gastroenterology journal 2016; Volum 4 (1). ISSN 2050-6406.s 30 - 41.s doi: 10.1177/2050640615624631.

  • Hassan, Cesare; Repici, A; Sharma, P; Correale, L; Zullo, A.; Bretthauer, Michael; Senore, Carlo; Spada, Cristiano; Bellisario, C; Bhandari, P; Rex, DK. Efficacy and safety of endoscopic resection of large colorectal polyps: a systematic review and meta-analysis.. Gut 2016; Volum 65 (5). ISSN 0017-5749.s 806 - 820.s doi: 10.1136/gutjnl-2014-308481.

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  • Kaminski, Michal Filip; Anderson, John; Valori, R; Kraszewska, E; rupinski, maciej; pachlewski, jacek; Wronska, Ewa; Bretthauer, Michael; thomas-gibson, siwan; Kuipers, EJ; Regula, Jaroslaw. Leadership training to improve adenoma detection rate in screening colonoscopy: a randomised trial.. Gut 2016; Volum 65 (4). ISSN 0017-5749.s 616 - 624.s doi: 10.1136/gutjnl-2014-307503.

  • Bretthauer, Michael; Kalager, Mette; Adami, Hans Olov. Do's and don'ts in evaluation of endoscopic screening for gastrointestinal cancers. Endoscopy 2016; Volum 48 (1). ISSN 0013-726X.s 75 - 80.s doi: 10.1055/s-0034-1393094.

  • Berstad, Paula Marianna; Løberg, Magnus; Larsen, Inger Kristin; Kalager, Mette; Holme, Øyvind; Botteri, Edoardo; Bretthauer, Michael; Hoff, Geir. Long-term lifestyle changes after colorectal cancer screening: randomised controlled trial. Gut 2015; Volum 64 (8). ISSN 0017-5749.s 1268 - 1276.s doi: 10.1136/gutjnl-2014-307376.

  • Swanson, Sonja; Holme, Øyvind; Løberg, Magnus; Kalager, Mette; Bretthauer, Michael; Hoff, Geir; Aas, Eline; Hernan, Miguel A.. Bounding the per-protocol effect in randomized trials: an application to colorectal cancer screening. Trials 2015; Volum 16 (541). ISSN 1745-6215.s doi: 10.1186/s13063-015-1056-8.

  • Holme, Øyvind; Bretthauer, Michael; Eide, Tor Jacob; Løberg, Else Marit; Grzyb, Krzysztof; Løberg, Magnus; Kalager, Mette; Adami, Hans Olov; Kjellevold, Øystein; Hoff, Geir. Long-term risk of colorectal cancer in individuals with serrated polyps. Gut 2015; Volum 64 (6). ISSN 0017-5749.s 929 - 936.s doi: 10.1136/gutjnl-2014-307793.

  • Robertson, Douglas J.; Kaminski, Michal Filip; Bretthauer, Michael. Effectiveness, training and quality assurance of colonoscopy screening for colorectal cancer. Gut 2015; Volum 64 (6). ISSN 0017-5749.s 982 - 990.s doi: 10.1136/gutjnl-2014-308076.

  • Løberg, Magnus; Lousdal, Mette Lise; Bretthauer, Michael; Kalager, Mette. Benefits and harms of mammography screening. Breast Cancer Research 2015; Volum 17 (1). ISSN 1465-5411.s doi: 10.1186/s13058-015-0525-z.

  • Garborg, Kjetil Kjeldstad; Kaminski, Michal Filip; Lindenburger, Wolfgang; Wiig, Håvard; Hasund, Audun; Wronska, Ewa; Bie, Rolf Bruun; Kleist, Britta; Løvdal, Leif; Holme, Øyvind; Kalager, Mette; Hoff, Geir; Bretthauer, Michael. Water exchange versus carbon dioxide insufflation in unsedated colonoscopy: A multicenter randomized controlled trial. Endoscopy 2015; Volum 47 (3). ISSN 0013-726X.s 192 - 199.s doi: 10.1055/s-0034-1390795.

  • Bretthauer, Michael; Løberg, Magnus; Kalager, Mette. Long-term colorectal-cancer mortality after adenoma removal.. New England Journal of Medicine 2014. ISSN 0028-4793.s doi: 10.1056/NEJMc1411954.

  • Leitao, Kristian Øgreid; Grimstad, Tore; Bretthauer, Michael; Holme, Øyvind; Paulsen, Vemund; Karlsen, Lars Normann; Isaksen, Kjetil; Småstuen, Milada Cvancarova; Aabakken, Lars. Polyethylene glycol vs sodium picosulfate/magnesium citrate for colonoscopy preparation. Endoscopy International Open 2014; Volum 2. ISSN 2196-9736.s E230 - E234.s doi: 10.1055/s-0034-1377520.

  • Spada, Cristiano; Stoker, Jaap; Alarcon, Onofre; Barbaro, Federico; Bellini, Davide; Bretthauer, Michael; De Haan, Margriet C.; Dumonceau, Jean-Marc; Ferlitsch, Monika; Halligan, Steve; Helbren, Emma; Hellström, Mikael; Kuipers, Ernst J.; Lefere, Philippe; Mang, Thomas; Neri, Emanuele; Petruzziello, Lucio; Plumb, Andrew; Regge, Daniele; Taylor, Stuart A.; Hassan, Cesare; Laghi, Andrea. Clinical indications for computed tomographic colonography: European Society of Gastrointestinal Endoscopy (ESGE) and European Society of Gastrointestinal and Abdominal Radiology (ESGAR) Guideline. European Radiology 2014; Volum 25 (2). ISSN 0938-7994.s 331 - 345.s doi: 10.1007/s00330-014-3435-z.

  • Holme, Øyvind; Bretthauer, Michael; Eide, Tor Jacob; Løberg, Else Marit; Grzyb, Krzysztof; Løberg, Magnus; Kalager, Mette; Adami, Hans Olov; Kjellevold, Øystein; Hoff, Geir. Long-term risk of colorectal cancer in individuals with serrated polyps.. Gut 2014. ISSN 0017-5749.s doi: 10.1136/gutjnl-2014-307793.

  • Løberg, Magnus; Kalager, Mette; Holme, Øyvind; Hoff, Geir; Adami, Hans Olov; Bretthauer, Michael. Long-Term Colorectal-Cancer Mortality after Adenoma Removal. New England Journal of Medicine 2014; Volum 371 (9). ISSN 0028-4793.s 799 - 807.s doi: 10.1056/NEJMoa1315870.

  • Kalager, Mette; Løberg, Magnus; Bretthauer, Michael; Adami, Hans Olov. Comparative analysis of breast cancer mortality following mammography screening in Denmark and Norway. Annals of Oncology 2014; Volum 25 (6). ISSN 0923-7534.s 1137 - 1143.s doi: 10.1093/annonc/mdu122.

  • Van Dam, Leonie; Bretthauer, Michael. Ethical issues in colorectal cancer screening. Baillière's Best Practice & Research : Clinical Gastroenterology 2014; Volum 28 (2). ISSN 1521-6918.s 315 - 326.s doi: 10.1016/j.bpg.2014.03.002.

  • Holme, Øyvind; Løberg, Magnus; Kalager, Mette; Bretthauer, Michael; Hernan, Miguel A.; Aas, Eline; Eide, Tor Jacob; Skovlund, Eva; Schneede, Jørn; Tveit, Magne Kjell; Hoff, Geir. Effect of Flexible Sigmoidoscopy Screening on Colorectal Cancer Incidence and Mortality A Randomized Clinical Trial. Journal of the American Medical Association (JAMA) 2014; Volum 312 (6). ISSN 0098-7484.s 606 - 615.s doi: 10.1001/jama.2014.8266.

  • Thiis-Evensen, Espen; Kalager, Mette; Bretthauer, Michael; Hoff, Geir. Long-term effectiveness of endoscopic screening on incidence and mortality of colorectal cancer: A randomized trial. United European Gastroenterology journal 2013; Volum 1 (3). ISSN 2050-6406.s 162 - 168.s doi: 10.1177/2050640613483290.

  • Hoff, Geir; Bretthauer, Michael; Garborg, Kjetil Kjeldstad; Eide, Tor Jacob. New polyps, old tricks: controversy about removing bengin bowel lesions. BMJ. British Medical Journal 2013; Volum 347. ISSN 0959-8146.s doi: 10.1136/bmj.f5843.

  • Holme, Øyvind; Moritz, Volker; Bretthauer, Michael; Seip, Birgitte Karen Berggreen; Glomsaker, Tom Birger; de Lange, Thomas; Aabakken, Lars; Stallemo, Asbjørn; Høie, Ole Ingebreth; Dahler, Stein; Sandvei, Per; Stray, Njaal; Ystrøm, Carl Magnus; Hoff, Geir. Smerter ved koloskopi. Tidsskrift for Den norske legeforening 2013; Volum 133 (10). ISSN 0029-2001.s 1074 - 1078.s doi: 10.4045/tidsskr.12.1467.

  • Garborg, Kjetil Kjeldstad; Holme, Øyvind; Løberg, Magnus; Kalager, Mette; Adami, Hans Olov; Bretthauer, Michael. Current status of screening for colorectal cancer. Annals of Oncology 2013; Volum 24 (8). ISSN 0923-7534.s 1963 - 1972.s doi: 10.1093/annonc/mdt157.

  • Holme, Øyvind; Bretthauer, Michael; Fretheim, Atle; Odgaard-Jensen, Jan; Hoff, Geir. Flexible sigmoidoscopy versus faecal occult blood testing for colorectal cancer screening in asymptomatic individuals. Cochrane Database of Systematic Reviews 2013 (9CD009259). ISSN 1469-493X.s doi: 10.1002/14651858.CD009259.pub2.

  • Holme, Øyvind; Bretthauer, Michael; de Lange, Thomas; Seip, Birgitte Karen Berggreen; Huppertz-Hauss, Gert; Høie, Ole Ingebreth; Sandvei, Per; Ystrøm, Carl Magnus; Hoff, Geir. Risk stratification to predict pain during unsedated colonoscopy: results of a multicenter cohort study. Endoscopy 2013; Volum 45 (9). ISSN 0013-726X.s 691 - 696.s doi: 10.1055/s-0033-1344239.

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  • Bretthauer, Michael; Kalager, Mette. Principles, effectiveness and caveats in screening for cancer. British Journal of Surgery 2013; Volum 100 (1). ISSN 0007-1323.s 55 - 65.s doi: 10.1002/bjs.8995.

  • Kuipers, Ernst J.; Rösch, Thomas; Bretthauer, Michael. Colorectal cancer screening-optimizing current strategies and new directions. Nature Reviews Clinical Oncology 2013; Volum 10 (3). ISSN 1759-4774.s 130 - 142.s doi: 10.1038/nrclinonc.2013.12.

  • Hassan, C.; Bretthauer, Michael; Kaminski, MF; Polkowski, M.; Rembacken, B.; Saunders, B.; Benamouzig, R.; Holme, Øyvind; Green, S; Kuiper, T.; Marmo, R.; Omar, M.; Petruzziello, L.; Spada, Cristina; Zullo, A.; Dumonceau, Jean Marc. Bowel preparation for colonoscopy: European Society of Gastrointestinal Endoscopy (ESGE) Guideline. Endoscopy 2013; Volum 45 (2). ISSN 0013-726X.s 142 - 150.s doi: 10.1055/s-0032-1326186.

  • Hoff, Geir; Moritz, Volker; Bretthauer, Michael; Aabakken, Lars; Berset, Ingrid Prytz; Glomsaker, Tom; Høie, Ole Ingebreth; de Lange, Thomas. Incontinence after colonoscopy - an unrecognized and preventable problem. A cross-sectional study from the Gastronet quality assurance program. Endoscopy 2012; Volum 44 (4). ISSN 0013-726X.s 349 - 353.s doi: 10.1055/s-0031-1291657.

  • Ahmed, Deeqa; Danielsen, Stine Aske; Ågesen, Trude Holmeide; Bretthauer, Michael; Thiis-Evensen, Espen; Hoff, Geir; Rognum, Torleiv Ole; Nesbakken, Arild; Lothe, Ragnhild A; Lind, Guro Elisabeth. A tissue-based comparative effectiveness analysis of biomarkers for early detection of colorectal tumors. Clinical and Translational Gastroenterology 2012; Volum 3. ISSN 2155-384X.s doi: 10.1038/ctg.2012.21.

  • Kaminski, MF; Bretthauer, Michael; Zauber, AG; Kuipers, EJ; Adami, Hans Olof; van Ballegooijen, M; Regula, J; van Leerdam, M; Stefansson, T; Pahlman, L; Dekker, Evelien; Hernan, MA; Garborg, Kjetil Kjeldstad; Hoff, Geir. The NordICC Study: Rationale and design of a randomized trial on colonoscopy screening for colorectal cancer. Endoscopy 2012; Volum 44 (7). ISSN 0013-726X.s 695 - 702.s doi: 10.1055/s-0032-1306895.

  • Kalager, Mette; Tamimi, Rulla; Bretthauer, Michael; Adami, Hans Olov. Prognosis in women with interval breast cancer: population based observational cohort study. BMJ. British Medical Journal 2012; Volum 345. ISSN 0959-8146.s doi: 10.1136/bmj.e7536.

  • Kalager, Mette; Adami, Hans-Olov; Bretthauer, Michael; Tamimi, Rulla. Overdiagnosis of Invasive Breast Cancer Due to Mammography Screening: Results From the Norwegian Screening Program. Annals of Internal Medicine 2012; Volum 156 (7). ISSN 0003-4819.s 491 - U61.s doi: 10.1059/0003-4819-156-7-201204030-00005.

  • Garborg, Kjetil Kjeldstad; Løberg, Magnus; Matre, Jon; Holme, Øyvind; Kalager, Mette; Hoff, Geir; Bretthauer, Michael. Reduced pain during screening colonoscopy with an ultrathin colonoscope: a randomized controlled trial. Endoscopy 2012; Volum 44 (8). ISSN 0013-726X.s 740 - 746.s doi: 10.1055/s-0032-1309755.

  • Bretthauer, Michael; Hoff, Geir. Comparative effectiveness research in cancer screening programmes. BMJ. British Medical Journal 2012; Volum 344. ISSN 0959-8146.s doi: 10.1136/bmj.e2864.

  • Moritz, Volker; Bretthauer, Michael; Ruud, Hans-Kristian; Glomsaker, Tom; de Lange, Thomas; Sandvei, Per; Huppertz-Hauss, Gert; Kjellevold, Øystein; Hoff, Geir. Withdrawal time as a quality indicator for colonoscopy - a nationwide analysis. Endoscopy 2012; Volum 44 (5). ISSN 0013-726X.s 476 - 481.s doi: 10.1055/s-0032-1306898.

  • De Vogel, Stefan; Schneede, Jörn; Ueland, Per Magne; Vollset, Stein Emil; Meyer, Klaus; Fredriksen, Åse; Midttun, Øivind; Bjørge, Tone; Kampman, Ellen; Bretthauer, Michael; Hoff, Geir. Biomarkers related to one-carbon metabolism as potential risk factors for distal colorectal adenomas. Cancer Epidemiology, Biomarkers and Prevention 2011; Volum 20 (8). ISSN 1055-9965.s 1726 - 1735.s doi: 10.1158/1055-9965.EPI-11-0359.

  • Løberg, Magnus; Furholm, Siv; Hoff, Ingrid E Taraldsrud; Aabakken, Lars; Hoff, Geir; Bretthauer, Michael. Nitrous oxide for analgesia in colonoscopy without sedation. Gastrointestinal Endoscopy 2011; Volum 74 (6). ISSN 0016-5107.s 1347 - 1353.s doi: 10.1016/j.gie.2011.07.071.

  • Bretthauer, Michael. Colorectal cancer screening. Journal of Internal Medicine 2011; Volum 270 (2). ISSN 0954-6820.s 87 - 98.s doi: 10.1111/j.1365-2796.2011.02399.x.

  • Domagk, D; Mensink, P.; Aktas, H.; Lenz, P; Meister, T.; Luegering, A.; Ullerich, H.; Aabakken, Lars; Heinecke, A.; Domschke, W.; Kuipers, E.; Bretthauer, Michael. Single- vs. double-balloon enteroscopy in small-bowel diagnostics: a randomized multicenter trial. Endoscopy 2011; Volum 43 (6). ISSN 0013-726X.s 472 - 476.s doi: 10.1055/s-0030-1256247.

  • Hoff, Geir; Moritz, Volker; Bretthauer, Michael; Aabakken, Lars; Høie, Ole Ingebreth; de Lange, Thomas; Berset, Ingrid Prytz; Kjellevold, Øystein; Glomsaker, Tom; Huppertz-Hauss, Gert; Lange, Ove Juel; Sandvei, Per. Gastronet survey on the use of one- or two-person technique for colonoscopy insertion. BMC Gastroenterology 2011; Volum 11. ISSN 1471-230X.s doi: 10.1186/1471-230X-11-73.

  • Holme, Øyvind; Høie, Ole Ingebreth; Matre, Jon; Stallemo, Asbjørn; Garborg, Kjetil Kjeldstad; Hasund, Audun; Wiig, Håvard; Hoff, Geir; Bretthauer, Michael. Magnetic endoscopic imaging versus standard colonoscopy in a routine colonoscopy setting: a randomized, controlled trial. Gastrointestinal Endoscopy 2011; Volum 73 (6). ISSN 0016-5107.s 1215 - 1222.s doi: 10.1016/j.gie.2011.01.054.

  • Lind, Guro Elisabeth; Danielsen, Stine Aske; Ahlquist, Terje Cruickshank; Merok, Marianne Aarstad; Andresen, Kim; Skotheim, Rolf Inge; Hektoen, Merete; Rognum, Torleiv Ole; Meling, Gunn Iren; Hoff, Geir; Bretthauer, Michael; Thiis-Evensen, Espen; Nesbakken, Arild; Lothe, Ragnhild A. Identification of an epigenetic biomarker panel with high sensitivity and specificity for colorectal cancer and adenomas. Molecular Cancer 2011; Volum 10. ISSN 1476-4598.s doi: 10.1186/1476-4598-10-85.

  • Hoff, Geir; Moritz, Volker; Bretthauer, Michael; Ludolph, Thomas; Huppertz-Hauss, Gert; Paulsen, Jørn; Seip, Birgitte Karen Berggreen; Sauar, Jostein; Kjellevold, Øystein; Chengarov, Lubomir. Colonoscope with a sub-distal hyper-flaccid segment for improved insertion at colonoscopy: a randomized study. Scandinavian Journal of Gastroenterology 2011; Volum 46 (1). ISSN 0036-5521.s 104 - 108.s doi: 10.3109/00365521.2010.521891.

  • Seip, Birgitte Karen Berggreen; Bretthauer, Michael; Dahler, Stein; Friestad, Joachim; Huppertz-Hauss, Gert; Høie, Ole Ingebreth; Kittang, Eirik; Nyhus, Sverre; Pallenschat, Jens; Sandvei, Per; Stallemo, Asbjørn; Svendsen, Martin Veel; Hoff, Geir. Sustaining the vitality of colonoscopy quality improvement programmes over time. Experience from the Norwegian Gastronet programme. Scandinavian Journal of Gastroenterology 2010; Volum 45 (3). ISSN 0036-5521.s 362 - 369.s doi: 10.3109/00365520903497106.

  • Bretthauer, Michael. Evidence for colorectal cancer screening. Baillière's Best Practice & Research : Clinical Gastroenterology 2010; Volum 24 (4). ISSN 1521-6918.s 417 - 425.s doi: 10.1016/j.bpg.2010.06.005.

  • Seip, Birgitte Karen Berggreen; Bretthauer, Michael; Dahler, Stein; Friestad, Joachim; Huppertz-Hauss, Gert; Høie, Ole Ingebreth; Kittang, Eirik; Nyhus, Sverre; Pallenschat, Jens; Sandvei, Per; Stallemo, Asbjørn; Svendsen, Martin Veel; Hoff, Geir. Patient satisfaction with on-demand sedation for outpatient colonoscopy. Endoscopy 2010; Volum 42 (8). ISSN 0013-726X.s 639 - 646.s doi: 10.1055/s-0030-1255612.

  • Hoff, Geir; Ottestad, PM; Skafløtten, Stein Roger; Bretthauer, Michael; Moritz, V. Quality assurance as an integrated part of the electronic medical record - a prototype applied for colonoscopy. Scandinavian Journal of Gastroenterology 2009; Volum 44 (10). ISSN 0036-5521.s 1259 - 1265.s doi: 10.1080/00365520903132021.

  • Kalager, Mette; Haldorsen, Tor; Bretthauer, Michael; Hoff, Geir; Thoresen, Steinar; Adami, Hans-Olov. Improved breast cancer survival following introduction of an organized mammography screening program among both screened and unscreened women: a population-based cohort study. Breast Cancer Research 2009; Volum 11 (4). ISSN 1465-5411.s doi: 10.1186/bcr2331.

  • Bretthauer, Michael. The First Transatlantic Symposium on Colorectal Cancer Screening. Endoscopy 2009; Volum 41 (9). ISSN 0013-726X.s 816 - 817.s doi: 10.1055/s-0029-1215049.

  • Hoff, Geir; Grotmol, Tom; Skovlund, Eva; Bretthauer, Michael. Risk of colorectal cancer seven years after flexible sigmoidoscopy screening: randomised controlled trial. BMJ. British Medical Journal 2009; Volum 338. ISSN 0959-8146.s doi: 10.1136/bmj.b1846.

  • Skovlund, Eva; Bretthauer, Michael; Grotmol, Tom; Larsen, Inger Kristin; Hoff, Geir. Sensitivity of pain rating scales in an endoscopy trial. The Clinical Journal of Pain 2005; Volum 21 (4). ISSN 0749-8047.s 292 - 296.

  • Aamodt, Geir; Gulbrandsen, Pål; Laake, Petter; Aavitsland, Preben; Bretthauer, Michael. Presentasjon av statistiske analyser i Tidsskriftet. Tidsskrift for Den norske legeforening 2005; Volum 125. ISSN 0029-2001.s 2183 - 2187.

  • Bretthauer, Michael; Skovlund, E; Grotmol, T; Thiis-Evensen, Espen; Gondal, G; Huppertz-Hauss, G; Efskind, P; Hofstad, B; Holmsen, ST; Eide, Tor Jacob; Hoff, Geir. Inter-endoscopist variation in polyp and neoplasia pick-up rates in flexible sigmoidoscopy screening for colorectal cancer. Scandinavian Journal of Gastroenterology 2003; Volum 38. ISSN 0036-5521.s 1268 - 1274.

  • Barua, Ishita; Berset, Ingrid Prytz; Hære, Petter; Wensaas, Knut-Arne; Bretthauer, Michael. Nasjonalt screeningprogram for tarmkreft. (Fulltekst: https://tidsskriftet.no/2020/02/debatt/nasjonalt-screeningprogram-tarmkreft Tidsskrift for Den norske legeforening 2020; Volum 140 (3). ISSN 0029-2001.s 222 - 222.s doi: 10.4045/tidsskr.19.0658.

  • Løberg, Magnus; Bretthauer, Michael. Presentasjon av tall: Ikke la deg lure. Tidsskrift for Den norske legeforening 2020; Volum 140 (8). ISSN 0029-2001.s 1 - 2.s doi: 10.4045/tidsskr.20.0378.

  • Kalager, Mette; Bretthauer, Michael. Improving cancer screening programs: Evaluating diagnostic tests in learning screening programs could improve public health. Science 2020; Volum 367 (6474). ISSN 0036-8075.s 143 - 144.s doi: 10.1126/science.aay3156.

  • Helsingen, Lise M.; Vandvik, Per Olav; Jodal, Henriette C.; Murphy, Silje Bjerkelund; Heen, Anja Fog; Kalager, Mette; Bretthauer, Michael. Tarmkreftscreening, eller ikke?. Tidsskrift for Den norske legeforening 2019; Volum 139 (15). ISSN 0029-2001.s doi: 10.4045/tidsskr.19.0323.

  • Holme, Øyvind; Bretthauer, Michael; Løberg, Magnus; Kalager, Mette; Adami, Hans Olov. Revisiting surveillance schemes for cancer survivors. Annals of Oncology 2019; Volum 30 (6). ISSN 0923-7534.s 881 - 883.s doi: 10.1093/annonc/mdz107.

  • Gjersvik, Petter; Bretthauer, Michael. Biologiske legemidler. Tidsskrift for Den norske legeforening 2019; Volum 139 (13). ISSN 0029-2001.s doi: 10.4045/tidsskr.19.0102.

  • Adami, Hans Olov; Kalager, Mette; Valdimarsdottir, Unnur; Bretthauer, Michael; Ioannidis, John P.A.. Author Reply to: The name of the game: Is preventive screening ?cancer screening??. European Journal of Clinical Investigation 2019; Volum 49 (6). ISSN 0014-2972.s doi: 10.1111/eci.13097.

  • Jodal, Henriette Cecilie; Løberg, Magnus; Emilsson, Louise; Adami, Hans Olov; Bretthauer, Michael; Kalager, Mette. Surveillance after Adenoma Removal (SAR): en case-kohort studie. Norsk gastroenterologisk forenings årsmøte 2018-02-08 - 2018-02-10 2018.

  • Holme, Øyvind; Løberg, Magnus Bjørson; Kalager, Mette; Bretthauer, Michael; Hoff, Geir. In response. Annals of Internal Medicine 2018; Volum 169 (9). ISSN 0003-4819.s 663 - 664.s doi: 10.7326/L18-0512.

  • Bretthauer, Michael; Kalager, Mette; Weinberg, David S.. From Colorectal Cancer Screening Guidelines to Headlines: Beware!. Annals of Internal Medicine 2018; Volum 170 (10). ISSN 0003-4819.s 733 - 740.s doi: 10.7326/L19-0086.

  • Bretthauer, Michael. Screening for melanom er en dårlig ide. Tidsskrift for Den norske legeforening 2018; Volum 138 (17). ISSN 0029-2001.s doi: 10.4045/tidsskr.18.0600.

  • Kalager, Mette; Bretthauer, Michael. When no guideline recommendation is the best recommendation.. The Lancet 2018; Volum 392 (10151). ISSN 0140-6736.s 898 - 899.s doi: 10.1016/S0140-6736(18)31671-4.

  • Juul, Frederik Emil; Skudal, Hilde Kristin; Øines, Mari Nanna; Wiig, Håvard; Rose, Øystein; Seip, Birgitte Karen Berggreen; Valeur, Jørgen; Midtvedt, Tore; Kalager, Mette; Holme, Øyvind; Adami, Hans Olov; Løberg, Magnus; Garborg, Kjetil Kjeldstad; Bretthauer, Michael. Fecal microbiota transplant in primary Clostridium difficile infection - a proof-of-concept trial. 5th National Microbiota Conference 2018-11-19 - 2018-11-19 2018.

  • Halvorsen, Jon Anders; Løberg, Magnus; Gjersvik, Petter; Roscher, Ingrid; Veierød, Marit Bragelien; Robsahm, Trude Eid; Nilsen, Lill Tove Norvang; Kalager, Mette; Bretthauer, Michael. Why a randomized melanoma screening trial is not a good idea. British Journal of Dermatology 2018; Volum 179. ISSN 0007-0963.s 532 - 533.s doi: 10.1111/bjd.16784.

  • Juul, Frederik Emil; Garborg, Kjetil Kjeldstad; Bretthauer, Michael; Kalager, Mette; Midtvedt, Tore; Furholm, Siv; Helsingen, Lise M.; Valeur, Jørgen; Skudal, Hilde Kristin; Seip, Birgitte Karen Berggreen; Wiig, Håvard; Holme, Øyvind; Rose, Øystein; Lamont, J. Thomas; Løberg, Magnus; Adami, Hans Olov; Øines, Mari Nanna. Fecal microbiota transplantation versus antibiotics for primary Clostridium difficile infection - a multicenter, randomized proof-of-concept trial. Digestive disease week 2018-06-02 - 2018-06-05 2018.

  • Olsen, Sofia E.Gustafsson; Bretthauer, Michael; Kalager, Mette. S.E. Olsen og medarbeidere svarer. Tidsskrift for Den norske legeforening 2017; Volum 137 (9). ISSN 0029-2001.s 599 - 599.s doi: 10.4045/tidsskr.17.0296.

  • Olsen, Sofia E.Gustafsson; Bretthauer, Michael; Kalager, Mette. Mer til skade enn til gagn - hvor mye skal pasientene vite? [More harm than benefit - how much should the patients know?]. Tidsskrift for Den norske legeforening 2017; Volum 137 (3). ISSN 0029-2001.s 175 - 176.s doi: 10.4045/tidsskr.16.0954.

  • García-Albéniz, Xabier; Hsu, John; Bretthauer, Michael; Hernan, Miguel A.. Screening colonoscopy to prevent colorectal cancer among medicare beneficiaries aged 70 to 79 years : In response. Annals of Internal Medicine 2017; Volum 166 (10). ISSN 0003-4819.s 758 - 759.s doi: 10.7326/L17-0138.

  • Løberg, Magnus; Holme, Øyvind; Bretthauer, Michael; Kalager, Mette. Colorectal adenomas, surveillance, and cancer. The Lancet Oncology 2017; Volum 18:e427 (8). ISSN 1470-2045.s 1 - 1.s doi: 10.1016/S1470-2045(17)30473-4.

  • Bretthauer, Michael; Adami, Hans-Olov. Zweifel. Tidsskrift for Den norske legeforening 2017; Volum 137 (20). ISSN 0029-2001.s 1577 - 1578.s doi: 10.4045/tidsskr.17.0875.

  • Bretthauer, Michael. Rett og riktig pakke. Tidsskrift for Den norske legeforening 2017; Volum 137 (17). ISSN 0029-2001.s 1264 - 1264.s doi: 10.4045/tidsskr.17.0510.

  • Bretthauer, Michael; Kamiński, Michał Filip; Emilsson, Louise; Adami, Hans-Olov. Uppföljning efter polypektomi: riktlinjer, tro och evidens. Läkartidningen 2017; Volum 6. ISSN 0023-7205.s 114 - .

  • Bretthauer, Michael; Dinis-Ribeiro, Mario; Siersema, Peter D.. Foreword. Endoscopy 2017; Volum 49 (3). ISSN 0013-726X.s 213 - 213.s doi: 10.1055/s-0043-102442.

  • Bretthauer, Michael; Vandvik, Per Olav; Skjeldestad, Finn Egil; Frich, Jan C; de Lange, Thomas; Løberg, Magnus. Ny spesialistutdanning for leger – fra sveitserost til kraftkar?. Tidsskrift for Den norske legeforening 2017; Volum 137 (17). ISSN 0029-2001.s 1270 - 1271.s doi: 10.4045/tidsskr.17.0637.

  • Holme, Øyvind; Løberg, Magnus; Bretthauer, Michael; Kalager, Mette. Authors' reply to Doherty and Hawkins. BMJ. British Medical Journal 2017; Volum 356. ISSN 1756-1833.s doi: 10.1136/bmj.j1267.

  • Jodal, Henriette Cecilie; Løberg, Magnus; Adami, Hans Olov; Bretthauer, Michael; Hoff, Geir; Kalager, Mette. Interval Colorectal Cancers after Screening - More Aggressive than Clinical Cancers?. Digestive Disease Week 2016-05-22 - 2016-05-24 2016.

  • Løberg, Magnus; Emilsson, Louise; Jodal, Henriette Cecilie; Bretthauer, Michael; Holme, Øyvind; Adami, Hans Olov; Kalager, Mette. Surveillance After Adenoma Removal: Does It Make a Difference?. Digestive Disease Week 2016-05-22 - 2016-05-24 2016.

  • Schei, Edvin; Bretthauer, Michael. Snill Perfeksjonistisk Refser.. Tidsskrift for Den norske legeforening 2016. ISSN 0029-2001.s doi: 10.4045/tidsskr.15.1257.

  • Dinis-Ribeiro, Mario; Bretthauer, Michael; Siersema, Peter D.. Endoscopy again supports Colorectal Cancer Awareness Month.. Endoscopy 2016. ISSN 0013-726X.s doi: 10.1055/s-0042-102468.

  • Kaminski, Michal Filip; Bretthauer, Michael. Cancer surveillance in gastroenterology practice.. Baillière's Best Practice & Research : Clinical Gastroenterology 2016. ISSN 1521-6918.s doi: 10.1016/j.bpg.2016.10.016.

  • García-Albéniz, Xabier; Hsu, John; Lipsitch, Marc; Bretthauer, Michael; Logan, Roger W.; Hernandez-Diaz, Sonia; Hernan, Miguel A.. Colonoscopy and Risk of Infective Endocarditis in the Elderly.. Journal of the American College of Cardiology 2016. ISSN 0735-1097.

  • Holme, Øyvind; Bretthauer, Michael. Pain and sedation during colonoscopy - a never ending story.. Endoscopy International Open 2016. ISSN 2196-9736.s doi: 10.1055/s-0042-106085.

  • Kalager, Mette; Adami, Hans Olov; Bretthauer, Michael. Recognizing data generation. New England Journal of Medicine 2016; Volum 374 (19). ISSN 0028-4793.s 1898 - 1898.s doi: 10.1056/NEJMc1603789.

  • Løberg, Magnus; Kalager, Mette; Bretthauer, Michael. "Randomize, Then Consent" or "Consent, Then Randomize"?: Revitalizing the Issue of Preconsent Randomization.. Epidemiology 2016. ISSN 1044-3983.s doi: 10.1097/EDE.0000000000000469.

  • Bretthauer, Michael; Kaminski, Michal Filip; Hassan, Cecare; Kalager, Mette; Holme, Øyvind; Hoff, Geir; Løberg, Magnus; Regula, Jaroslaw; Castells, A; Adami, Hans Olov. America, We Are Confused: The Updated U.S. Preventive Services Task Force Recommendation on Colorectal Cancer Screening. Annals of Internal Medicine 2016; Volum 166 (2). ISSN 0003-4819.s 139 - 140.s doi: 10.7326/M16-1805.

  • Schei, Edvin; Bretthauer, Michael. Snill perfeksjonistisk refser. Tidsskrift for Den norske legeforening 2016; Volum 136 (1). ISSN 0029-2001.s 24 - 26.s doi: 10.4045/tidsskr.15.1257.

  • Fugelsnes, Elin; Gjøstein, Dagrun Kyte; Bretthauer, Michael. Lot seg ikke friste av gaver og gevinster. (Fulltekst: http://forskning.no/2016/10/lot-seg-ikke-friste-av-gaver-og-gevinster 2016.

  • Gjøstein, Dagrun Kyte; Bretthauer, Michael; Løberg, Magnus. D.K. Gjøstein og medarbeidere svarer:. Tidsskrift for Den norske legeforening 2016; Volum 136 (16). ISSN 0029-2001.s 1326 - 1327.s doi: 10.4045/tidsskr.16.0690.

  • Fugelsnes, Elin; Gjøstein, Dagrun Kyte; Bretthauer, Michael. Lot seg ikke friste av gaver og gevinster. (Fulltekst: https://www.etikkom.no/Aktuelt/Fagbladet-Forskningsetikk/arkiv/2016/2016-3/lot-seg-ikke-friste-av-gaver-og-gevinster/ 2016.

  • Bretthauer, Michael; Kalager, Mette; Adami, Hans Olov; Hoff, Geir. Who Is for CO2? Slow Adoption of Carbon Dioxide Insufflation in Colonoscopy. Annals of Internal Medicine 2016; Volum 165 (2). ISSN 0003-4819.s 145 - 6.s doi: 10.7326/M16-0209.

  • Bretthauer, Michael; Hem, Erlend. M. Bretthauer & E. Hem svarer. Tidsskrift for Den norske legeforening 2016; Volum 136 (1). ISSN 0029-2001.s 10 - 10.s doi: 10.4045/tidsskr.15.1307.

  • Bretthauer, Michael; Hem, Erlend. Vi trenger ikke flere tidsskrifter.. Aftenposten (morgenutg. : trykt utg.) 2015. ISSN 0804-3116.

  • Bretthauer, Michael. Skades av mammografi.. Dagbladet 2015. ISSN 0805-3766.

  • Garborg, Kjetil Kjeldstad; Kaminski, Michal Filip; Bretthauer, Michael. Reply to Ishaq et al.. Endoscopy 2015; Volum 47 (10). ISSN 0013-726X.s 959 - .s doi: 10.1055/s-0034-1392409.

  • Bretthauer, Michael; Hem, Erlend. Omskjæring av gutter.. Tidsskrift for Den norske legeforening 2015; Volum 135 (21). ISSN 0029-2001.s 1926 - 1927.s doi: 10.4045/tidsskr.15.0756.

  • Bretthauer, Michael; Siersema, Peter D.. More adenomas - Less cancer? Advanced imaging in colonoscopy. Endoscopy 2015; Volum 47 (5). ISSN 0013-726X.s 396 - 397.s doi: 10.1055/s-0034-1391864.

  • Frich, Jan C; Kalager, Mette; Bretthauer, Michael. Samvalg er et dårlig begrep. Aftenposten (morgenutg. : trykt utg.) 2015. ISSN 0804-3116.s 12 - 12.

  • Hoff, Geir; Bretthauer, Michael; Garborg, Kjetil Kjeldstad; Eide, Tor Jacob. Konsensusbaserte retningslinjer kan hindre nødvendig forskning :. Tidsskrift for Den norske legeforening 2014; Volum 134 (2). ISSN 0029-2001.s 148 - 149.s doi: 10.4045/tidsskr.13.1313.

  • Bretthauer, Michael; Løberg, Magnus; Kalager, Mette. The authors reply. New England Journal of Medicine 2014; Volum 371 (21). ISSN 0028-4793.s 2036 - 2037.s doi: 10.1056/NEJMc1411954.

  • Bretthauer, Michael. Nei, screening redder ikke liv. Aftenposten (morgenutg. : trykt utg.) 2014. ISSN 0804-3116.

  • Hem, Erlend; Gjersvik, Petter; Bretthauer, Michael. Sammenliknende effektforskning. Tidsskrift for Den norske legeforening 2014. ISSN 0029-2001.s doi: 10.4045/tidsskr.14.0485.

  • Bretthauer, Michael; Brandrud, Aleidis Esther Skard. Endoscopy training: time to stop counting procedures?. Gut 2014. ISSN 0017-5749.s doi: 10.1136/gutjnl-2014-306765.

  • Jodal, Henriette Cecilie; Reyes, Yasmin Donnabel; Roksund, Gisle; Bretthauer, Michael. Implementering av retningslinjer for PSA-testing i allmennpraksis. Tidsskrift for Den norske legeforening 2014; Volum 134 (21). ISSN 0029-2001.s 2032 - 2034.s doi: 10.4045/tidsskr.14.0982.

  • Gjersvik, Petter; Hem, Erlend; Jacobsen, Geir Wenberg; Bretthauer, Michael. Hva bør non-inferiority-studier kalles på norsk?. Tidsskrift for Den norske legeforening 2014; Volum 134. ISSN 0029-2001.s 852 - 853.

  • Roksund, Gisle; Bretthauer, Michael; Kalager, Mette. En epidemi av diagnoser, ikke sykdom. Aftenposten (morgenutg. : trykt utg.) 2014. ISSN 0804-3116.

  • Kalager, Mette; Bretthauer, Michael. Bartens dårlige venner. Dagbladet 2014. ISSN 0805-3766.

  • Gjersvik, Petter; Hem, Erlend; Jacobsen, Geir Wenberg; Bretthauer, Michael. P. Gjersvik og medarbeidere svarer:. Tidsskrift for Den norske legeforening 2014; Volum 134 (12-13). ISSN 0029-2001.s 1215 - .s doi: 10.4045/tidsskr.14.0744.

  • Kalager, Mette; Adami, Hans Olov; Bretthauer, Michael. Too much mammography. BMJ (Clinical Research Edition) 2014; Volum 348. ISSN 0959-8138.s doi: 10.1136/bmj.g1403.

  • Kalager, Mette; Løberg, Magnus; Bretthauer, Michael. Limited use of nonprogram screening in Norway. International Journal of Cancer 2013; Volum 132 (7). ISSN 0020-7136.s 1723 - 1724.s doi: 10.1002/ijc.27807.

  • Vandvik, Per Olav; Bretthauer, Michael; Kongerud, Ingrid Charlotte. From clinical questions to trustworthy answers. (Fulltekst: http://tidsskriftet.no/article/3048643/en_GB Tidsskrift for Den norske legeforening 2013; Volum 133 (15). ISSN 0029-2001.s 1611 - 1614.

  • Hoff, Geir; Bretthauer, Michael; Garborg, Kjetil Kjeldstad; Eide, Tor Jacob. New polyps, old tricks: controversy about removing benign bowel lesions. BMJ. British Medical Journal 2013; Volum 347. ISSN 0959-8146.s doi: 10.1136/bmj.f5843.

  • Fossmark, Reidar; Bretthauer, Michael; Gustafsson, Björn. Who should perform endoscopies? (Hvem bør utføre endoskopier?). Tidsskrift for Den norske legeforening 2013; Volum 133 (11). ISSN 0029-2001.s 1171 - .

  • Kalager, Mette; Løberg, Magnus; Fønnebø, Vinjar; Bretthauer, Michael. Failure to account for selection-bias. International Journal of Cancer 2013; Volum 133 (11). ISSN 0020-7136.s 2751 - 2753.s doi: 10.1002/ijc.28244.

  • Bretthauer, Michael; Holme, Øyvind; Garborg, Kjetil Kjeldstad. Computed tomography colonography vs. colonoscopy for colorectal cancer screening: close call, but not closed case. Endoscopy 2013; Volum 45 (3). ISSN 0013-726X.s 159 - 160.s doi: 10.1055/s-0032-1326208.

  • Kalager, Mette; Adami, Hans Olov; Bretthauer, Michael; Tamimi, Rulla M.. Overdiagnosis of Invasive Breast Cancer due to Mammography Screening RESPONSE. Annals of Internal Medicine 2012; Volum 157 (3). ISSN 0003-4819.s 221 - 222.

  • Berstad, Paula Marianna; Loberg, Magnus; Kalager, Mette; Jørgensen, Anita; Garborg, Kjetil Kjeldstad; Ruud, Hans-Kristian; Bretthauer, Michael; Hoff, Geir. Risk Stratification for Advanced Colorectal Neoplasia. Cancer Prevention Research 2012; Volum 5 (12). ISSN 1940-6207.s 1405 - 1405.s doi: 10.1158/1940-6207.CAPR-12-0383.

  • Bretthauer, Michael; Kalager, Mette. Colorectal-Cancer Screening Reply. New England Journal of Medicine 2012; Volum 366 (22). ISSN 0028-4793.s 2131 - 2131.

  • Garborg, Kjetil Kjeldstad; Loberg, Magnus; Matre, Jon; Holme, Øyvind; Kalager, Mette; Hoff, Geir; Bretthauer, Michael. Improved Colonoscopy Screening With an Ultra Thin Colonoscope: A Randomized Controlled Trial. Gastrointestinal Endoscopy 2012; Volum 75 (4). ISSN 0016-5107.s 179 - 180.

  • Ahmed, Deeqa; Ågesen, Trude Holmeide; Danielsen, Stine Aske; Bretthauer, Michael; Thiis-Evensen, Espen; Hoff, Geir; Rognum, Torleiv Ole; Nesbakken, Arild; Lothe, Ragnhild A; Lind, Guro Elisabeth. METHYLATION BASED BIOMARKERS FOR NON-INVASIVE EARLY DETECTION OF COLORECTAL CANCER. Annals of Oncology 2012; Volum 23. ISSN 0923-7534.s 23 - 23.

  • Bretthauer, Michael; Kalager, Mette. Colonoscopy as a Triage Screening Test. (http://www.nejm.org/doi/full/10.1056/NEJMe1114639) New England Journal of Medicine 2012; Volum 366 (8). ISSN 0028-4793.s 759 - 760.

  • Cotton, Peter B.; Bretthauer, Michael. Quality assurance in gastroenterology Preface. Baillière's Best Practice & Research : Clinical Gastroenterology 2011; Volum 25 (3). ISSN 1521-6918.s 335 - 336.s doi: 10.1016/j.bpg.2011.05.008.

  • Seip, Birgitte Karen Berggreen; Bretthauer, Michael; Hoff, Geir. Patients' satisfaction with on-demand sedation for out-patient colonoscopies. Journal of Gastroenterology and Hepatology 2010; Volum 25. ISSN 0815-9319.s A18 - A18.s doi: 10.1111/j.1440-1746.2010.06451.x.

  • Bretthauer, Michael. Which tool is best for colorectal cancer screening?. BMJ. British Medical Journal 2010; Volum 340. ISSN 0959-8146.s doi: 10.1136/bmj.c2831.

  • Hoff, Geir; Bretthauer, Michael. Screening for kolorektal kreft - endelig en debattant! :. Tidsskrift for Den norske legeforening 2010; Volum 130 (20). ISSN 0029-2001.s 2012 - .

  • Bretthauer, Michael. Turning science into clinical practice - the case of carbon dioxide insufflation. Endoscopy 2010; Volum 42 (12). ISSN 0013-726X.s 1104 - 1105.s doi: 10.1055/s-0030-1255973.

  • Fretheim, Atle; Bretthauer, Michael. Resultater fra kliniske effektstudier av screening for kolorektal kreft. (Fulltekst: http://hdl.handle.net/11250/2378344 2010 ISBN 978-82-8121-347-0.

  • Fretheim, Atle; Bretthauer, Michael. Forventede virkninger ved innføring av screening for kolorektal kreft i Norge. (Fulltekst: http://hdl.handle.net/11250/2378326 2010 ISBN 978-82-8121-365-4.

  • Lenz, Philipp; Mensink, Peter; Aktas, Huseyin; Meister, Tobias; Lügering, Andreas; Ullerich, Hansjörg; Aabakken, Lars; Domschke, Wolfram; Kuipers, Ernst; Bretthauer, Michael; Domagk, Dirk. Single Versus Double Balloon Enteroscopy in Small Bowel Diagnostics: A Randomized Multicenter Trial. American Journal of Gastroenterology 2010; Volum 105. ISSN 0002-9270.s S531 - S531.

  • Lind, Guro Elisabeth; Danielsen, Stine Aske; Ahlquist, Terje Cruickshank; Merok, Marianne Aarstad; Rognum, Torleiv Ole; Meling, Gunn Iren; Bretthauer, Michael; Thiis-Evensen, Espen; Nesbakken, Arild; Lothe, Ragnhild A. A novel epigenetic biomarker panel for early detection of colorectal cancer and adenomas. European Journal of Cancer 2009; Volum 7 (2). ISSN 0959-8049.s 145 - 145.

  • Bretthauer, Michael. The Capsule and Colorectal-Cancer Screening - The Crux of the Matter. New England Journal of Medicine 2009; Volum 361 (3). ISSN 0028-4793.s 300 - 301.

  • de Lange, Thomas; Bretthauer, Michael; Hoff, Geir; Aabakken, Lars. Do Norwegian endoscopists agree with current ASGE and ESGE guidelines for endoscopy?. Scandinavian Journal of Gastroenterology 2008; Volum 43. ISSN 0036-5521.s 34 - 34.

  • Barua, Ishita; Berset, Ingrid Prytz; Hære, Petter; Wensaas, Knut-Arne; Bretthauer, Michael. Nasjonalt screeningprogram for tarmkreft. (Fulltekst: https://tidsskriftet.no/2020/02/debatt/nasjonalt-screeningprogram-tarmkreft Tidsskrift for Den norske legeforening 2020; Volum 140 (3). ISSN 0029-2001.s 222 - 222.s doi: 10.4045/tidsskr.19.0658.

  • Løberg, Magnus; Bretthauer, Michael. Presentasjon av tall: Ikke la deg lure. Tidsskrift for Den norske legeforening 2020; Volum 140 (8). ISSN 0029-2001.s 1 - 2.s doi: 10.4045/tidsskr.20.0378.

  • Kalager, Mette; Bretthauer, Michael. Improving cancer screening programs: Evaluating diagnostic tests in learning screening programs could improve public health. Science 2020; Volum 367 (6474). ISSN 0036-8075.s 143 - 144.s doi: 10.1126/science.aay3156.

  • Helsingen, Lise M.; Vandvik, Per Olav; Jodal, Henriette C.; Murphy, Silje Bjerkelund; Heen, Anja Fog; Kalager, Mette; Bretthauer, Michael. Tarmkreftscreening, eller ikke?. Tidsskrift for Den norske legeforening 2019; Volum 139 (15). ISSN 0029-2001.s doi: 10.4045/tidsskr.19.0323.

  • Holme, Øyvind; Bretthauer, Michael; Løberg, Magnus; Kalager, Mette; Adami, Hans Olov. Revisiting surveillance schemes for cancer survivors. Annals of Oncology 2019; Volum 30 (6). ISSN 0923-7534.s 881 - 883.s doi: 10.1093/annonc/mdz107.

  • Gjersvik, Petter; Bretthauer, Michael. Biologiske legemidler. Tidsskrift for Den norske legeforening 2019; Volum 139 (13). ISSN 0029-2001.s doi: 10.4045/tidsskr.19.0102.

  • Adami, Hans Olov; Kalager, Mette; Valdimarsdottir, Unnur; Bretthauer, Michael; Ioannidis, John P.A.. Author Reply to: The name of the game: Is preventive screening ?cancer screening??. European Journal of Clinical Investigation 2019; Volum 49 (6). ISSN 0014-2972.s doi: 10.1111/eci.13097.

  • Jodal, Henriette Cecilie; Løberg, Magnus; Emilsson, Louise; Adami, Hans Olov; Bretthauer, Michael; Kalager, Mette. Surveillance after Adenoma Removal (SAR): en case-kohort studie. Norsk gastroenterologisk forenings årsmøte 2018-02-08 - 2018-02-10 2018.

  • Holme, Øyvind; Løberg, Magnus Bjørson; Kalager, Mette; Bretthauer, Michael; Hoff, Geir. In response. Annals of Internal Medicine 2018; Volum 169 (9). ISSN 0003-4819.s 663 - 664.s doi: 10.7326/L18-0512.

  • Bretthauer, Michael; Kalager, Mette; Weinberg, David S.. From Colorectal Cancer Screening Guidelines to Headlines: Beware!. Annals of Internal Medicine 2018; Volum 170 (10). ISSN 0003-4819.s 733 - 740.s doi: 10.7326/L19-0086.

  • Bretthauer, Michael. Screening for melanom er en dårlig ide. Tidsskrift for Den norske legeforening 2018; Volum 138 (17). ISSN 0029-2001.s doi: 10.4045/tidsskr.18.0600.

  • Kalager, Mette; Bretthauer, Michael. When no guideline recommendation is the best recommendation.. The Lancet 2018; Volum 392 (10151). ISSN 0140-6736.s 898 - 899.s doi: 10.1016/S0140-6736(18)31671-4.

  • Juul, Frederik Emil; Skudal, Hilde Kristin; Øines, Mari Nanna; Wiig, Håvard; Rose, Øystein; Seip, Birgitte Karen Berggreen; Valeur, Jørgen; Midtvedt, Tore; Kalager, Mette; Holme, Øyvind; Adami, Hans Olov; Løberg, Magnus; Garborg, Kjetil Kjeldstad; Bretthauer, Michael. Fecal microbiota transplant in primary Clostridium difficile infection - a proof-of-concept trial. 5th National Microbiota Conference 2018-11-19 - 2018-11-19 2018.

  • Halvorsen, Jon Anders; Løberg, Magnus; Gjersvik, Petter; Roscher, Ingrid; Veierød, Marit Bragelien; Robsahm, Trude Eid; Nilsen, Lill Tove Norvang; Kalager, Mette; Bretthauer, Michael. Why a randomized melanoma screening trial is not a good idea. British Journal of Dermatology 2018; Volum 179. ISSN 0007-0963.s 532 - 533.s doi: 10.1111/bjd.16784.

  • Juul, Frederik Emil; Garborg, Kjetil Kjeldstad; Bretthauer, Michael; Kalager, Mette; Midtvedt, Tore; Furholm, Siv; Helsingen, Lise M.; Valeur, Jørgen; Skudal, Hilde Kristin; Seip, Birgitte Karen Berggreen; Wiig, Håvard; Holme, Øyvind; Rose, Øystein; Lamont, J. Thomas; Løberg, Magnus; Adami, Hans Olov; Øines, Mari Nanna. Fecal microbiota transplantation versus antibiotics for primary Clostridium difficile infection - a multicenter, randomized proof-of-concept trial. Digestive disease week 2018-06-02 - 2018-06-05 2018.

  • Olsen, Sofia E.Gustafsson; Bretthauer, Michael; Kalager, Mette. S.E. Olsen og medarbeidere svarer. Tidsskrift for Den norske legeforening 2017; Volum 137 (9). ISSN 0029-2001.s 599 - 599.s doi: 10.4045/tidsskr.17.0296.

  • Olsen, Sofia E.Gustafsson; Bretthauer, Michael; Kalager, Mette. Mer til skade enn til gagn - hvor mye skal pasientene vite? [More harm than benefit - how much should the patients know?]. Tidsskrift for Den norske legeforening 2017; Volum 137 (3). ISSN 0029-2001.s 175 - 176.s doi: 10.4045/tidsskr.16.0954.

  • García-Albéniz, Xabier; Hsu, John; Bretthauer, Michael; Hernan, Miguel A.. Screening colonoscopy to prevent colorectal cancer among medicare beneficiaries aged 70 to 79 years : In response. Annals of Internal Medicine 2017; Volum 166 (10). ISSN 0003-4819.s 758 - 759.s doi: 10.7326/L17-0138.

  • Løberg, Magnus; Holme, Øyvind; Bretthauer, Michael; Kalager, Mette. Colorectal adenomas, surveillance, and cancer. The Lancet Oncology 2017; Volum 18:e427 (8). ISSN 1470-2045.s 1 - 1.s doi: 10.1016/S1470-2045(17)30473-4.

  • Bretthauer, Michael; Adami, Hans-Olov. Zweifel. Tidsskrift for Den norske legeforening 2017; Volum 137 (20). ISSN 0029-2001.s 1577 - 1578.s doi: 10.4045/tidsskr.17.0875.

  • Bretthauer, Michael. Rett og riktig pakke. Tidsskrift for Den norske legeforening 2017; Volum 137 (17). ISSN 0029-2001.s 1264 - 1264.s doi: 10.4045/tidsskr.17.0510.

  • Bretthauer, Michael; Kamiński, Michał Filip; Emilsson, Louise; Adami, Hans-Olov. Uppföljning efter polypektomi: riktlinjer, tro och evidens. Läkartidningen 2017; Volum 6. ISSN 0023-7205.s 114 - .

  • Bretthauer, Michael; Dinis-Ribeiro, Mario; Siersema, Peter D.. Foreword. Endoscopy 2017; Volum 49 (3). ISSN 0013-726X.s 213 - 213.s doi: 10.1055/s-0043-102442.

  • Bretthauer, Michael; Vandvik, Per Olav; Skjeldestad, Finn Egil; Frich, Jan C; de Lange, Thomas; Løberg, Magnus. Ny spesialistutdanning for leger – fra sveitserost til kraftkar?. Tidsskrift for Den norske legeforening 2017; Volum 137 (17). ISSN 0029-2001.s 1270 - 1271.s doi: 10.4045/tidsskr.17.0637.

  • Holme, Øyvind; Løberg, Magnus; Bretthauer, Michael; Kalager, Mette. Authors' reply to Doherty and Hawkins. BMJ. British Medical Journal 2017; Volum 356. ISSN 1756-1833.s doi: 10.1136/bmj.j1267.

  • Jodal, Henriette Cecilie; Løberg, Magnus; Adami, Hans Olov; Bretthauer, Michael; Hoff, Geir; Kalager, Mette. Interval Colorectal Cancers after Screening - More Aggressive than Clinical Cancers?. Digestive Disease Week 2016-05-22 - 2016-05-24 2016.

  • Løberg, Magnus; Emilsson, Louise; Jodal, Henriette Cecilie; Bretthauer, Michael; Holme, Øyvind; Adami, Hans Olov; Kalager, Mette. Surveillance After Adenoma Removal: Does It Make a Difference?. Digestive Disease Week 2016-05-22 - 2016-05-24 2016.

  • Schei, Edvin; Bretthauer, Michael. Snill Perfeksjonistisk Refser.. Tidsskrift for Den norske legeforening 2016. ISSN 0029-2001.s doi: 10.4045/tidsskr.15.1257.

  • Dinis-Ribeiro, Mario; Bretthauer, Michael; Siersema, Peter D.. Endoscopy again supports Colorectal Cancer Awareness Month.. Endoscopy 2016. ISSN 0013-726X.s doi: 10.1055/s-0042-102468.

  • Kaminski, Michal Filip; Bretthauer, Michael. Cancer surveillance in gastroenterology practice.. Baillière's Best Practice & Research : Clinical Gastroenterology 2016. ISSN 1521-6918.s doi: 10.1016/j.bpg.2016.10.016.

  • García-Albéniz, Xabier; Hsu, John; Lipsitch, Marc; Bretthauer, Michael; Logan, Roger W.; Hernandez-Diaz, Sonia; Hernan, Miguel A.. Colonoscopy and Risk of Infective Endocarditis in the Elderly.. Journal of the American College of Cardiology 2016. ISSN 0735-1097.

  • Holme, Øyvind; Bretthauer, Michael. Pain and sedation during colonoscopy - a never ending story.. Endoscopy International Open 2016. ISSN 2196-9736.s doi: 10.1055/s-0042-106085.

  • Kalager, Mette; Adami, Hans Olov; Bretthauer, Michael. Recognizing data generation. New England Journal of Medicine 2016; Volum 374 (19). ISSN 0028-4793.s 1898 - 1898.s doi: 10.1056/NEJMc1603789.

  • Løberg, Magnus; Kalager, Mette; Bretthauer, Michael. "Randomize, Then Consent" or "Consent, Then Randomize"?: Revitalizing the Issue of Preconsent Randomization.. Epidemiology 2016. ISSN 1044-3983.s doi: 10.1097/EDE.0000000000000469.

  • Bretthauer, Michael; Kaminski, Michal Filip; Hassan, Cecare; Kalager, Mette; Holme, Øyvind; Hoff, Geir; Løberg, Magnus; Regula, Jaroslaw; Castells, A; Adami, Hans Olov. America, We Are Confused: The Updated U.S. Preventive Services Task Force Recommendation on Colorectal Cancer Screening. Annals of Internal Medicine 2016; Volum 166 (2). ISSN 0003-4819.s 139 - 140.s doi: 10.7326/M16-1805.

  • Schei, Edvin; Bretthauer, Michael. Snill perfeksjonistisk refser. Tidsskrift for Den norske legeforening 2016; Volum 136 (1). ISSN 0029-2001.s 24 - 26.s doi: 10.4045/tidsskr.15.1257.

  • Fugelsnes, Elin; Gjøstein, Dagrun Kyte; Bretthauer, Michael. Lot seg ikke friste av gaver og gevinster. (Fulltekst: http://forskning.no/2016/10/lot-seg-ikke-friste-av-gaver-og-gevinster 2016.

  • Gjøstein, Dagrun Kyte; Bretthauer, Michael; Løberg, Magnus. D.K. Gjøstein og medarbeidere svarer:. Tidsskrift for Den norske legeforening 2016; Volum 136 (16). ISSN 0029-2001.s 1326 - 1327.s doi: 10.4045/tidsskr.16.0690.

  • Fugelsnes, Elin; Gjøstein, Dagrun Kyte; Bretthauer, Michael. Lot seg ikke friste av gaver og gevinster. (Fulltekst: https://www.etikkom.no/Aktuelt/Fagbladet-Forskningsetikk/arkiv/2016/2016-3/lot-seg-ikke-friste-av-gaver-og-gevinster/ 2016.

  • Bretthauer, Michael; Kalager, Mette; Adami, Hans Olov; Hoff, Geir. Who Is for CO2? Slow Adoption of Carbon Dioxide Insufflation in Colonoscopy. Annals of Internal Medicine 2016; Volum 165 (2). ISSN 0003-4819.s 145 - 6.s doi: 10.7326/M16-0209.

  • Bretthauer, Michael; Hem, Erlend. M. Bretthauer & E. Hem svarer. Tidsskrift for Den norske legeforening 2016; Volum 136 (1). ISSN 0029-2001.s 10 - 10.s doi: 10.4045/tidsskr.15.1307.

  • Bretthauer, Michael; Hem, Erlend. Vi trenger ikke flere tidsskrifter.. Aftenposten (morgenutg. : trykt utg.) 2015. ISSN 0804-3116.

  • Bretthauer, Michael. Skades av mammografi.. Dagbladet 2015. ISSN 0805-3766.

  • Garborg, Kjetil Kjeldstad; Kaminski, Michal Filip; Bretthauer, Michael. Reply to Ishaq et al.. Endoscopy 2015; Volum 47 (10). ISSN 0013-726X.s 959 - .s doi: 10.1055/s-0034-1392409.

  • Bretthauer, Michael; Hem, Erlend. Omskjæring av gutter.. Tidsskrift for Den norske legeforening 2015; Volum 135 (21). ISSN 0029-2001.s 1926 - 1927.s doi: 10.4045/tidsskr.15.0756.

  • Bretthauer, Michael; Siersema, Peter D.. More adenomas - Less cancer? Advanced imaging in colonoscopy. Endoscopy 2015; Volum 47 (5). ISSN 0013-726X.s 396 - 397.s doi: 10.1055/s-0034-1391864.

  • Frich, Jan C; Kalager, Mette; Bretthauer, Michael. Samvalg er et dårlig begrep. Aftenposten (morgenutg. : trykt utg.) 2015. ISSN 0804-3116.s 12 - 12.

  • Hoff, Geir; Bretthauer, Michael; Garborg, Kjetil Kjeldstad; Eide, Tor Jacob. Konsensusbaserte retningslinjer kan hindre nødvendig forskning :. Tidsskrift for Den norske legeforening 2014; Volum 134 (2). ISSN 0029-2001.s 148 - 149.s doi: 10.4045/tidsskr.13.1313.

  • Bretthauer, Michael; Løberg, Magnus; Kalager, Mette. The authors reply. New England Journal of Medicine 2014; Volum 371 (21). ISSN 0028-4793.s 2036 - 2037.s doi: 10.1056/NEJMc1411954.

  • Bretthauer, Michael. Nei, screening redder ikke liv. Aftenposten (morgenutg. : trykt utg.) 2014. ISSN 0804-3116.

  • Hem, Erlend; Gjersvik, Petter; Bretthauer, Michael. Sammenliknende effektforskning. Tidsskrift for Den norske legeforening 2014. ISSN 0029-2001.s doi: 10.4045/tidsskr.14.0485.

  • Bretthauer, Michael; Brandrud, Aleidis Esther Skard. Endoscopy training: time to stop counting procedures?. Gut 2014. ISSN 0017-5749.s doi: 10.1136/gutjnl-2014-306765.

  • Jodal, Henriette Cecilie; Reyes, Yasmin Donnabel; Roksund, Gisle; Bretthauer, Michael. Implementering av retningslinjer for PSA-testing i allmennpraksis. Tidsskrift for Den norske legeforening 2014; Volum 134 (21). ISSN 0029-2001.s 2032 - 2034.s doi: 10.4045/tidsskr.14.0982.

  • Gjersvik, Petter; Hem, Erlend; Jacobsen, Geir Wenberg; Bretthauer, Michael. Hva bør non-inferiority-studier kalles på norsk?. Tidsskrift for Den norske legeforening 2014; Volum 134. ISSN 0029-2001.s 852 - 853.

  • Roksund, Gisle; Bretthauer, Michael; Kalager, Mette. En epidemi av diagnoser, ikke sykdom. Aftenposten (morgenutg. : trykt utg.) 2014. ISSN 0804-3116.

  • Kalager, Mette; Bretthauer, Michael. Bartens dårlige venner. Dagbladet 2014. ISSN 0805-3766.

  • Gjersvik, Petter; Hem, Erlend; Jacobsen, Geir Wenberg; Bretthauer, Michael. P. Gjersvik og medarbeidere svarer:. Tidsskrift for Den norske legeforening 2014; Volum 134 (12-13). ISSN 0029-2001.s 1215 - .s doi: 10.4045/tidsskr.14.0744.

  • Kalager, Mette; Adami, Hans Olov; Bretthauer, Michael. Too much mammography. BMJ (Clinical Research Edition) 2014; Volum 348. ISSN 0959-8138.s doi: 10.1136/bmj.g1403.

  • Kalager, Mette; Løberg, Magnus; Bretthauer, Michael. Limited use of nonprogram screening in Norway. International Journal of Cancer 2013; Volum 132 (7). ISSN 0020-7136.s 1723 - 1724.s doi: 10.1002/ijc.27807.

  • Vandvik, Per Olav; Bretthauer, Michael; Kongerud, Ingrid Charlotte. From clinical questions to trustworthy answers. (Fulltekst: http://tidsskriftet.no/article/3048643/en_GB Tidsskrift for Den norske legeforening 2013; Volum 133 (15). ISSN 0029-2001.s 1611 - 1614.

  • Hoff, Geir; Bretthauer, Michael; Garborg, Kjetil Kjeldstad; Eide, Tor Jacob. New polyps, old tricks: controversy about removing benign bowel lesions. BMJ. British Medical Journal 2013; Volum 347. ISSN 0959-8146.s doi: 10.1136/bmj.f5843.

  • Fossmark, Reidar; Bretthauer, Michael; Gustafsson, Björn. Who should perform endoscopies? (Hvem bør utføre endoskopier?). Tidsskrift for Den norske legeforening 2013; Volum 133 (11). ISSN 0029-2001.s 1171 - .

  • Kalager, Mette; Løberg, Magnus; Fønnebø, Vinjar; Bretthauer, Michael. Failure to account for selection-bias. International Journal of Cancer 2013; Volum 133 (11). ISSN 0020-7136.s 2751 - 2753.s doi: 10.1002/ijc.28244.

  • Bretthauer, Michael; Holme, Øyvind; Garborg, Kjetil Kjeldstad. Computed tomography colonography vs. colonoscopy for colorectal cancer screening: close call, but not closed case. Endoscopy 2013; Volum 45 (3). ISSN 0013-726X.s 159 - 160.s doi: 10.1055/s-0032-1326208.

  • Kalager, Mette; Adami, Hans Olov; Bretthauer, Michael; Tamimi, Rulla M.. Overdiagnosis of Invasive Breast Cancer due to Mammography Screening RESPONSE. Annals of Internal Medicine 2012; Volum 157 (3). ISSN 0003-4819.s 221 - 222.

  • Berstad, Paula Marianna; Loberg, Magnus; Kalager, Mette; Jørgensen, Anita; Garborg, Kjetil Kjeldstad; Ruud, Hans-Kristian; Bretthauer, Michael; Hoff, Geir. Risk Stratification for Advanced Colorectal Neoplasia. Cancer Prevention Research 2012; Volum 5 (12). ISSN 1940-6207.s 1405 - 1405.s doi: 10.1158/1940-6207.CAPR-12-0383.

  • Bretthauer, Michael; Kalager, Mette. Colorectal-Cancer Screening Reply. New England Journal of Medicine 2012; Volum 366 (22). ISSN 0028-4793.s 2131 - 2131.

  • Garborg, Kjetil Kjeldstad; Loberg, Magnus; Matre, Jon; Holme, Øyvind; Kalager, Mette; Hoff, Geir; Bretthauer, Michael. Improved Colonoscopy Screening With an Ultra Thin Colonoscope: A Randomized Controlled Trial. Gastrointestinal Endoscopy 2012; Volum 75 (4). ISSN 0016-5107.s 179 - 180.

  • Ahmed, Deeqa; Ågesen, Trude Holmeide; Danielsen, Stine Aske; Bretthauer, Michael; Thiis-Evensen, Espen; Hoff, Geir; Rognum, Torleiv Ole; Nesbakken, Arild; Lothe, Ragnhild A; Lind, Guro Elisabeth. METHYLATION BASED BIOMARKERS FOR NON-INVASIVE EARLY DETECTION OF COLORECTAL CANCER. Annals of Oncology 2012; Volum 23. ISSN 0923-7534.s 23 - 23.

  • Bretthauer, Michael; Kalager, Mette. Colonoscopy as a Triage Screening Test. (http://www.nejm.org/doi/full/10.1056/NEJMe1114639) New England Journal of Medicine 2012; Volum 366 (8). ISSN 0028-4793.s 759 - 760.

  • Cotton, Peter B.; Bretthauer, Michael. Quality assurance in gastroenterology Preface. Baillière's Best Practice & Research : Clinical Gastroenterology 2011; Volum 25 (3). ISSN 1521-6918.s 335 - 336.s doi: 10.1016/j.bpg.2011.05.008.

  • Seip, Birgitte Karen Berggreen; Bretthauer, Michael; Hoff, Geir. Patients' satisfaction with on-demand sedation for out-patient colonoscopies. Journal of Gastroenterology and Hepatology 2010; Volum 25. ISSN 0815-9319.s A18 - A18.s doi: 10.1111/j.1440-1746.2010.06451.x.

  • Bretthauer, Michael. Which tool is best for colorectal cancer screening?. BMJ. British Medical Journal 2010; Volum 340. ISSN 0959-8146.s doi: 10.1136/bmj.c2831.

  • Hoff, Geir; Bretthauer, Michael. Screening for kolorektal kreft - endelig en debattant! :. Tidsskrift for Den norske legeforening 2010; Volum 130 (20). ISSN 0029-2001.s 2012 - .

  • Bretthauer, Michael. Turning science into clinical practice - the case of carbon dioxide insufflation. Endoscopy 2010; Volum 42 (12). ISSN 0013-726X.s 1104 - 1105.s doi: 10.1055/s-0030-1255973.

  • Fretheim, Atle; Bretthauer, Michael. Resultater fra kliniske effektstudier av screening for kolorektal kreft. (Fulltekst: http://hdl.handle.net/11250/2378344 2010 ISBN 978-82-8121-347-0.

  • Fretheim, Atle; Bretthauer, Michael. Forventede virkninger ved innføring av screening for kolorektal kreft i Norge. (Fulltekst: http://hdl.handle.net/11250/2378326 2010 ISBN 978-82-8121-365-4.

  • Lenz, Philipp; Mensink, Peter; Aktas, Huseyin; Meister, Tobias; Lügering, Andreas; Ullerich, Hansjörg; Aabakken, Lars; Domschke, Wolfram; Kuipers, Ernst; Bretthauer, Michael; Domagk, Dirk. Single Versus Double Balloon Enteroscopy in Small Bowel Diagnostics: A Randomized Multicenter Trial. American Journal of Gastroenterology 2010; Volum 105. ISSN 0002-9270.s S531 - S531.

  • Lind, Guro Elisabeth; Danielsen, Stine Aske; Ahlquist, Terje Cruickshank; Merok, Marianne Aarstad; Rognum, Torleiv Ole; Meling, Gunn Iren; Bretthauer, Michael; Thiis-Evensen, Espen; Nesbakken, Arild; Lothe, Ragnhild A. A novel epigenetic biomarker panel for early detection of colorectal cancer and adenomas. European Journal of Cancer 2009; Volum 7 (2). ISSN 0959-8049.s 145 - 145.

  • Bretthauer, Michael. The Capsule and Colorectal-Cancer Screening - The Crux of the Matter. New England Journal of Medicine 2009; Volum 361 (3). ISSN 0028-4793.s 300 - 301.

  • de Lange, Thomas; Bretthauer, Michael; Hoff, Geir; Aabakken, Lars. Do Norwegian endoscopists agree with current ASGE and ESGE guidelines for endoscopy?. Scandinavian Journal of Gastroenterology 2008; Volum 43. ISSN 0036-5521.s 34 - 34.

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