1. Division of Gastroenterology and Hepatology, University of Utah Health, Salt Lake City
2. Department of Medicine, the Brooklyn Hospital Center, Brooklyn
3. Section of Gastroenterology, Department of Medical Sciences, University of Foggia, 71122 Foggia, Italy
4. Mather Hospital, Port Jefferson, New York, United States
5. Division of Gastroenterology & Hepatology, CHI Health Creighton University Medical Center, Omaha
6. Gastroenterology & Hepatology, University of Nebraska Medical Center, Omaha
7. Division of Gastroenterology, McLeod Health Center, Florence, South Carolina, USA
8. Department of Medicine, Brigham and Women’s Hospital- Harvard Medical School, Boston, Massachusetts, USA
9. Center for Advanced Therapeutic Endoscopy (CATE), Porter Adventist Hospital/PEAK Gastroenterology, Denver