1. Department of Internal Medicine Cleveland Clinic Cleveland OH USA
2. Department of Gastroenterology and Hepatology, MetroHealth Medical Center Case Western Reserve University Cleveland OH USA
3. Department of Gastroenterology and Hepatology Cleveland Clinic Cleveland OH USA
4. Department of Colorectal Surgery, Digestive Disease and Surgery Institute Cleveland Clinic Cleveland OH USA
5. Sanford R. Weiss MD Center for Hereditary Colorectal Neoplasia, Digestive Disease and Surgery Institute Cleveland Clinic Cleveland OH USA
6. Division of Gastroenterology, Hepatology and Nutrition University of Florida Gainesville FL USA
7. Internal Medicine Rochester General Hospital Rochester NY USA
8. Division of Gastroenterology, Hepatology and Nutrition Service Memorial Sloan Kettering Cancer Center New York NY USA
9. Department of Gastroenterology and Hepatology The Johns Hopkins Hospital Baltimore MD USA
10. Division of Gastroenterology Washington University School of Medicine St. Louis MO USA
11. Division of Interventional Oncology and Surgical Endoscopy (IOSE) Parkview Cancer Institute Fort Wayne IN USA
12. Division of Gastroenterology and Hepatology University of Rochester Medical Center Rochester NY USA
13. Department of Gastroenterology University of California San Francisco CA USA
14. Shivanand Desai Center for Digestive Disorders Deenanath Mangeshkar Hospital and Research Center Pune India
15. Department of Gastroenterology and Hepatology University of Oklahoma Norman OK USA
16. Department of Quantitative Health Sciences Cleveland Clinic Cleveland OH USA
17. Department of General Surgery Cleveland Clinic Cleveland OH USA