1. Cancer Epidemiology and Prevention Research, CancerControl Alberta, Alberta Health Services, Calgary, Canada
2. Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
3. Department of Oncology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
4. Department of Epidemiology, Center for Public Health, Medical University of Vienna, Vienna, Austria
5. Division of Public Health Sciences, Department of Surgery, Washington University School of Medicine, St Louis, Missouri
6. Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, New York
7. Division of Gastroenterology, Department of Medicine, Massachusetts General Hospital, Boston
8. Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston
9. Department of Colorectal Surgery, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
10. Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
11. Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
12. Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
13. Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland
14. Siteman Cancer Center, Washington University School of Medicine, St Louis, Missouri