1. Johns Hopkins Medicine, Baltimore, Maryland, United States
2. National Medical Center Century XXI, Mexico City, Mexico
3. Hospital Edouard Herriot, Lyon, Rhone-Alpes, France
4. Borland Groover, Jacksonville, Florida, United States
5. NorthShore University Health System, Evanston, Illinois, United States
6. Division of Gastroenterology and Hepatology, University of Maryland School of Medicine, Baltimore, Maryland, United States
7. “Prof Dr Octavian Fodor” Regional Institute of Gastroenterology and Hepatology, Cluj-Napoca, Cluj, Romania
8. Gastroenterology and Hepatology Medical Center, Cluj-Napoca, Cluj, Romania
9. Hôpital Dupuytren, Servìce de Gastroentérologie, Limoges, France
10. Sharp HealthCare, San Diego, California, United States
11. Department of Gastroenterology, Endoscopy Unit, SIDS Hospitals, Surat, India
12. Icahn School of Medicine at Mount Sinai, New York, New York, United States