Affiliation: | 1 Houston Veterans Affairs Health Services Research and Development Center for Innovations in Quality, Effectiveness and Safety, Houston, Texas;2 Department of Medicine, Baylor College of Medicine, Houston, Texas;3 Department of Pathology, Baylor College of Medicine, Houston, Texas;4 Department of Medicine, Michael E. DeBakey Veterans Affairs Medical Center, Houston, Texas;5 Department of Pathology, Michael E. DeBakey Veterans Affairs Medical Center, Houston, Texas;6 Section of Gastroenterology and Hepatology, Michael E. DeBakey Veterans Affairs Medical Center, Houston, Texas |