1. Division of Gastroenterology and Hepatology Stanford University School of Medicine Stanford California USA
2. Division of Gastroenterology and Hepatology University of California‐San Francisco San Francisco California USA
3. Division of Gastroenterology and Hepatology Oregon Health and Science University Portland Oregon USA
4. Department of Gastroenterology and Hepatology Amsterdam University Medical Centre Amsterdam the Netherlands
5. Division of Gastroenterology and Hepatology Medical University of South Carolina Charleston South Carolina USA
6. Division of Gastroenterology University of Pennsylvania Perelman School of Medicine Philadelphia Pennsylvania USA
7. Division of Gastroenterology and Hepatology Department of Medicine The MetroHealth Medical Center and Case Western Reserve Cleveland Ohio USA
8. Division of Gastroenterology Washington University School of Medicine St. Louis Missouri USA
9. Department of Medicine Feinberg School of Medicine Northwestern University Chicago Illinois USA
10. Division of Gastroenterology Weill Cornell School of Medicine New York NY USA
11. Department of Gastroenterology and Hepatology Mayo Clinic Rochester Minnesota USA
12. Department of Pathophysiology and Transplantation Università degli Studi of Milan Milan Italy
13. Gastroenterology and Endoscopy Unit Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico Milan Italy
14. Division of Digestive Diseases & Nutrition University of South Florida College of Medicine Tampa Florida USA
15. Digestive Physiology Hospices Civils de Lyon, Hospital E Herriot and Lyon I University Lyon France
16. Division of Gastroenterology Department of Surgery, Oncology and Gastroenterology University of Padua Padua Italy
17. Division of Gastroenterology, Hepatology, and Nutrition Vanderbilt University Medical Center Nashville Tennessee USA
18. Division of Gastroenterology Mayo Clinic Arizona Scottsdale Arizona USA
19. Division of Gastroenterology Duke University School of Medicine Durham North Carolina USA