Affiliation: | 1. Division of Gastroenterology, Department of Medicine, University of California San Diego, La Jolla, California;3. Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, and Center for Outcomes Research and Evaluation, Yale New Haven Hospital, New Haven, Connecticut;4. Division of Biomedical Informatics, Department of Medicine, University of California San Diego, La Jolla, California |