Colonic Polyps

• Mayo Clinic — Jacksonville, Florida, United States

• Xijing Hospital of Digestive Diseases — Xi'an, Shaanxi, China

• Digestive Endoscopy Unit of Catholic University — Rome, Italy

• St. Paul's Hospital — Vancouver, British Columbia, Canada

• Valduce Hospital - Gastroenterology Department — Como, CO, Italy

• Valduce Hospital — Como, Italy

• Sheffield Teaching Hospitals NHS Trust — Sheffield, South Yorkshire, United Kingdom

• Departement of Surgery, St John of God Hospital — Vienna, State of Vienna, Austria

• Mayo Clinic — Rochester, Minnesota, United States

Not specified