| Affiliation: | 1. Department of Medicine, Division of Gastroenterology, VA Greater Los Angeles Healthcare System, Los Angeles, California, USA;2. Department of Medicine, Division of Digestive Diseases, David Geffen School of Medicine at UCLA, Los Angeles, California, USA;3. Division of General Internal Medicine and Health Services Research, David Geffen School of Medicine at UCLA, Los Angeles, California, USA;4. Department of Health Services, UCLA School of Public Health, Los Angeles, California, USA;5. CURE Digestive Diseases Research Center, Los Angeles, California, USA;6. Division of General Internal Medicine, Cedars-Sinai Medical Center, Los Angeles, California, USA;7. UCLA/VA Center for Outcomes Research and Education (CORE), Los Angeles, California, USA;1. Department of Medicine and Division of Gastroenterology and Hepatology, Johns Hopkins Medical Institutions, Baltimore, Maryland, USA;2. Department of Medicine and Division of Gastroenterology, Winthrop University Hospital, Meneola, New York, USA;3. Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama, Japan;1. Department of Gastroenterology, ICMDiM, Barcelona, Spain;2. Department of Anesthesiology, CDB, Hospital Clínic, IDIBAPS, CIBERehd, Barcelona, Spain;3. Department of Radiology, CDB, Hospital Clínic, IDIBAPS, CIBERehd, Barcelona, Spain;4. Department of Pathology, CDB, Hospital Clínic, IDIBAPS, CIBERehd, Barcelona, Spain;5. Department of Radiology, Brigham and Women''s Hospital, Boston, Massachusetts, USA;1. Division of Gastroenterology, University of Florida, Gainesville, Florida, USA;2. Indiana University Medical Center, Indianapolis, Indiana, USA |
