1 Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA.
2 Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA.
3 Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA.
4 Center of Gastrointestinal Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
5 Department of General, Visceral and Transplantation Surgery, University of Heidelberg, Heidelberg, Germany.
6 Study Centre of the German Surgical Society, University of Heidelberg, Heidelberg, Germany.
7 Section of Bowel Cancer Screening, Cancer Registry of Norway, Oslo, Norway.
8 Norwegian PSC Research Center, Department of Transplantation Medicine, Division of Surgery, Inflammatory Diseases and Transplantation, Oslo University Hospital, Oslo, Norway.
9 Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
10 Program in MPE Molecular Pathological Epidemiology, Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA.
11 Division of Public Health Sciences, Department of Surgery, Washington University School of Medicine in St Louis, St Louis, Missouri, USA.
12 Siteman Cancer Center, Washington University School of Medicine in St Louis, St Louis, Missouri, USA.
13 Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA.
14 Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA.
15 Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA.
16 Department of Immunology and Infectious Disease, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA.
17 Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA mis911@mail.harvard.edu.