Affiliation: | 1. Section of Gastroenterology and Hepatology, Department of Medicine, Baylor College of Medicine, Houston, Texas;3. University of Houston, Houston, Texas;4. Center for Innovations in Quality, Effectiveness, and Safety, Michael E. DeBakey Veterans Affairs Medical Center, Houston, Texas;6. Section of Gastroenterology and Hepatology, Michael E. DeBakey Veterans Affairs Medical Center, Houston, Texas |