1. Departments of Medicine and Surgery University of Pittsburgh Pittsburgh Pennsylvania USA
2. Center for Health Equity Research and Promotion VA Pittsburgh Healthcare Center Pittsburgh Pennsylvania USA
3. School of Nursing Oregon Health and Science University Portland Oregon USA
4. Division of Digestive Diseases David Geffen School of Medicine at University of California Los Angeles California USA
5. Division of General Internal Medicine and Health Services Research David Geffen School of Medicine at University of California Los Angeles California USA
6. Liver Center Division of Gastroenterology Department of Medicine Massachusetts General Hospital and Harvard Medical School Boston Massachusetts USA
7. Department of Medicine Einstein Healthcare Network Philadelphia Pennsylvania USA
8. Brookdale Department of Geriatrics and Palliative Medicine Icahn School of Medicine at Mount Sinai New York New York USA
9. Geriatric Research Education and Clinical Center James J. Peters Veterans Affairs Medical Center Bronx New York USA
10. Sections of Gastroenterology and Hepatology and Health Services Research Department of Medicine Baylor College of Medicine Houston Texas USA
11. VA HSR&D Center for Innovations in Quality Effectiveness, and Safety (IQuESt) and Michael E. DeBakey Veterans Affairs Medical Center Houston Texas USA