1. Division of Gastroenterology & Hepatology; Oregon Health & Science University; Portland OR USA
2. Gastroenterology/Hepatology Division; Tufts Medical Center; Boston MA USA
3. Digestive Diseases; Yale University; New Haven CT USA
4. Department of Medicine; NYU Langone; New York NY USA
5. Division of Gastroenterology & Hepatology; Stanford University; Stanford CA USA
6. San Jose Gastroenterology; San Jose CA USA
7. Albert Einstein College of Medicine; New York NY USA
8. Department of Medicine; Cedars Sinai Medical Center; Los Angeles CA USA
9. Division of Gastroenterology; Mount Sinai Beth Israel; New York NY USA
10. Digestive Health Associates of Texas; Plano TX USA
11. Digestive Disease Center; University of Chicago; Chicago IL USA
12. Division of Gastroenterology and Hepatology; University of Pennsylvania; Philadelphia PA USA
13. Division of Gastroenterology and Hepatology; University of Michigan; Ann Arbor MI USA