1. Division of Gastroenterology, Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA.
2. Center for Evidence-Based Practice, University of Pennsylvania Health System, Philadelphia, Pennsylvania, USA.
3. Kaiser Permanente Evidence-Based Practice Center, Kaiser Permanente Center for Health Research, Portland, Oregon, USA.
4. Department of Biostatics, Epidemiology and Informatics, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
5. Penn Medicine Center for Health Equity Advancement, University of Pennsylvania Health System, Philadelphia, Pennsylvania, USA.
6. Pulmonary, Allergy, and Critical Care Division, Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA.
7. Department of Medical Ethics and Health Policy, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
8. ECRI, Plymouth Meeting, Pennsylvania, USA.