| Affiliation: | 3. Section of Hepatology, Division of Gastroenterology and Hepatology, University of Colorado Denver, School of Medicine, Aurora, Colorado;4. Division of Gastroenterology, University of California–Irvine, Irvine, California and Gastroenterology Service, VA Long Beach Healthcare System, Long Beach, California;5. Division of Digestive and Liver Diseases, University of Texas Southwestern Medical Center, Dallas, Texas;12. Division of Gastroenterology, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan;8. Division of Gastroenterology and Hepatology, Saint Louis University School of Medicine, St. Louis, Missouri;9. Gastrointestinal Unit (Medical Services), Massachusetts General Hospital and Department of Medicine, Harvard Medical School, Boston, Massachusetts |
