1. Division of Gastroenterology, Montreal University Hospital Research Center, Montreal, Québec, Canada
2. Division of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Québec, Canada
3. Division of Gastroenterology and Hepatology, IN University Medical Center, Indianapolis, Indiana, USA
4. Division of Gastroenterology, McGill University Health Centre (MUHC), Montreal, Québec, Canada
5. Division of Gastroenterology and Hepatology, NYU Grossman School of Medicine, New York City, New York, USA
6. Translational Gastroenterology Unit, John Radcliffe Hospital, University of Oxford, and Oxford NIHR Biomedical Research Centre, Oxford, UK
7. Division of Gastroenterology and Hepatology, Mayo Clinic Healthcare, London, UK
8. Division of Gastroenterology, Regina Margherita Hospital, Rome, Italy
9. Division of Gastroenterology, Oslo University Hospital, Oslo, Norway
10. Division of Gastroenterology, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire, USA
11. Division of Gastroenterology, White River Junction Veteran Affairs Medical Center, White River Junction, Vermont, USA
12. Division of Gastroenterology, University of KS School of Medicine, Kansas City, Kansas, USA
13. Division of Gastroenterology, Veterans Affairs Medical Center, Kansas City, Missouri, USA