Institution: | 1. Division of Gastroenterology and Hepatology, University of Kansas Medical Center, Kansas City, Kansas;3. Department of Gastroenterology and Hepatology, University of Toledo, Toledo, Ohio;4. Department of Gastroenterology and Hepatology, Ochsner Clinic Foundation, Jefferson, Louisiana;5. Department of Gastroenterology and Hepatology, Veteran Affairs Medical Center, Kansas City, Missouri;7. Department of Gastroenterology and Hepatology, Southern Illinois University, Springfield, Illinois;12. Department of Gastroenterology and Hepatology, Nuovo Regina Margherita Hospital, Digestive Endoscopy Unit, Rome, Italy;8. Department of Gastroenterology and Hepatology, Hospital Clínic of Barcelona, University of Barcelona, Barcelona, Spain |