Interpreting epidemiologic studies of colonoscopy screening for colorectal cancer prevention: understanding the mechanisms of action is key

Affiliations

• ¹ Departments of Epidemiology and Nutrition, Harvard T.H. Chan School of Public Health, 677 Huntington Ave, Kresge 801A, Boston, MA, USA. msong@hsph.harvard.edu.
• ² Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA. msong@hsph.harvard.edu.
• ³ Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA. msong@hsph.harvard.edu.
• ⁴ Institute of Health and Society, University of Oslo, Oslo, Norway.
• ⁵ Department of Transplantation Medicine, Oslo University Hospital, Oslo, Norway.