1. Center for Innovations in Quality, Effectiveness, and Safety (IQuESt), Michael E. DeBakey Veterans Affairs Medical Center , Houston , TX , USA
2. Baylor College of Medicine , 2002 Holcombe Blvd. #152 , Houston , TX , USA
3. Section of Gastroenterology and Hepatology, Department of Medicine , Baylor College of Medicine , Houston , TX , USA
4. MedStar Health Institute for Quality and Safety , MD , USA
5. Department of Medicine, Georgetown University , Washington , DC , USA