Affiliation: | 1. Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California;2. Vatche and Tamar Manoukian Division of Digestive Diseases, Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California;3. UCLA Kaiser Permanente Center for Health Equity, UCLA Jonsson Comprehensive Cancer Center, Los Angeles, California;4. Department of Medicine, VA Greater Los Angeles Healthcare System, Los Angeles, California;1. Department of Internal Medicine, Section of Gastroenterology, Hepatology and Nutrition, University of Chicago, Chicago, Illinois;2. MacLean Center for Clinical Medical Ethics, University of Chicago, Chicago, Illinois;3. Department of Internal Medicine, University of Chicago, Chicago, Illinois;1. Westmead Hospital, Department of Gastroenterology and Hepatology;2. Westmead Clinical School, University of Sydney, Sydney, New South Wales, Australia |