| Affiliation: | 1. Division of Gastroenterology, Beth Israel Deaconess Medical Center, Boston, Massachusetts;3. Department of Medicine, University of California, San Diego, La Jolla, California;4. Inflammatory Bowel Disease Center, Cedars-Sinai Medical Center, Los Angeles, California;6. Department of Gastroenterology and Hepatology, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire;5. Department of Gastroenterology and Hepatology, Guy''s and St. Thomas'' NHS Foundation Trust, London, United Kingdom |
