1. Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia
2. Division of Cancer Control and Population Sciences, University of Pittsburgh Medical Center Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA
3. Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA
4. Vietnam Colorectal Cancer and Polyps Study, Vinmec Healthcare System, Hanoi, Vietnam
5. Tisch Cancer Center, Icahn School of Medicine at Mount Sinai, New York, NY
6. Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy