1. Section of General Internal Medicine Department of Internal Medicine Yale School of Medicine New Haven Connecticut USA
2. Yale New Haven Hospital New Haven Connecticut USA
3. Division of General Internal Medicine Department of Medicine University of Alabama at Birmingham School of Medicine Birmingham Alabama USA
4. Section of General Internal Medicine and Geriatrics Department of Medicine Tulane University School of Medicine New Orleans Louisiana USA
5. Division of General Internal Medicine Department of Internal Medicine St Louis University School of Medicine St Louis Missouri USA
6. Division of Hospital Medicine Department of Medicine University of California San Francisco School of Medicine San Francisco California USA