1. Division of General Internal Medicine and Geriatrics, Department of Internal Medicine, Emory University School of Medicine, Atlanta, Georgia
2. Division of Gastroenterology, Department of Medicine, Massachusetts General Hospital, Boston
3. Massachusetts General Hospital Biostatistics Center, Boston, Massachusetts
4. Department of Global Health, Boston University School of Public Health, Boston, Massachusetts
5. Department of Medicine, University of Louisville, Louisville, Kentucky
6. Department of Medicine, University of Chicago, Chicago, Illinois
7. Department of Pediatrics, University of Chicago, Chicago, Illinois
8. Division of General Internal Medicine, Department of Medicine, University of Alabama at Birmingham School of Medicine
9. Division of Hospital Medicine, Department of Medicine, University of California, San Francisco
10. Division of General Internal Medicine, Department of Medicine, University of California, San Francisco
11. Division of General Internal Medicine, Department of Medicine, Massachusetts General Hospital, Boston