1. Division of Gastroenterology Washington University School of Medicine St. Louis Missouri
2. Barts and The London School of Medicine and Dentistry Queen Mary University of London London UK
3. Division of Gastroenterology, Department of Medicine Northwestern University Chicago Illinois
4. Department of Surgery Stanford University Stanford California
5. Division of Gastroenterology Mayo Clinic Rochester Minnesota
6. Università degli Studi di Milano Milan Italy
7. Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico Milan Italy
8. Digestive Physiology, Hopital E Herriot, Hospices Civils de Lyon Université de Lyon Lyon France
9. Digestive Physiology Lyon I University, Université de Lyon Lyon France
10. Université de Lyon, Inserm U1032, LabTAU Université de Lyon Lyon France
11. Division of Gastroenterology, Department of Surgery, Oncology and Gastroenterology University of Padua Padua Italy
12. Department of Surgery University of Washington Seattle Washington
13. Division of Gastroenterology Vanderbilt University Nashville Tennessee
14. Division of Gastroenterology Stanford University Stanford California