1. Internal Medicine, University of Arizona, Banner University Medical Center, Tucson, Arizona, United States
2. Internal Medicine, St. Vincent Charity Medical Center, Cleveland, Ohio, United States
3. Carilion Roanoke Memorial Hospital, Roanoke, Virginia, United States
4. Department of Gastroenterology and Hepatology, University of Nevada, Las Vegas, Nevada, United States
5. Department of Gastroenterology and Hepatology, Singapore General Hospital, Singapore
6. Division of Gastroenterology and Hepatology, University of Utah School of Medicine, Salt Lake City, Utah, United States