Colorectal Cancer Prevention

• Massachusetts General Hospital Cancer Center — Boston, Massachusetts, United States

• Centre Léon Bérard — Lyon, France

• University Florida - Online Study — Gainesville, Florida, United States

• Massachusetts General Hospital Cancer Center — Boston, Massachusetts, United States

• Department of Surgery, Odense University Hospital — Odense, Denmark

• Clinique Paris Bercy — Charenton-le-Pont, France

Not specified

• University of Puerto Rico, Comprehensive Cancer Center — San Juan, PR, Puerto Rico

• Centre Léon Bérard (CLB) — Lyon, France

• University of Texas MD Anderson Cancer Center — Houston, Texas, United States