1 Section of Gastroenterology and Hepatology, Department of Medicine, Baylor College of Medicine, Houston, TX, United States. Electronic address: maneeratc@gmail.com.
2 Section of Gastroenterology and Hepatology, Department of Medicine, Baylor College of Medicine, Houston, TX, United States; Center of Innovation, Effectiveness and Quality, Michael E. DeBakey Veteran Affairs Medical Center, Houston, TX, United States; Section of Health Services Research, Section of Gastroenterology and Hepatology, Michael E. DeBakey Veteran Affairs Medical Center, Houston, TX, United States.