1. From the Department of Emergency Medicine Washington University in St. Louis School of MedicineEmergency Care Research Core St. Louis MIUSA
2. the Department of Emergency Medicine Icahn School of Medicine at Mount Sinai New York NYUSA
3. the Department of Epidemiology Johns Hopkins Bloomberg School of Public Health Baltimore MDUSA
4. the Becker Medical Library Washington University in St. Louis School of Medicine St. Louis MOUSA
5. the Division of General Medicine and Geriatrics Emory University School of Medicine Atlanta GAUSA
6. Clinical Research West Health Institute La Jolla CAUSA
7. James J. Peters VA Medical Center Bronx NYUSA
8. and the Department of Geriatrics and Palliative Medicine Icahn School of Medicine at Mount Sinai New York NYUSA
9. the BerbeeWalsh Department of Emergency Medicine University of Wisconsin–Madison Madison WIUSA
10. the Department of Medicine Northwestern University Feinberg School of Medicine Chicago ILUSA
11. the Departments of Emergency Medicine and Internal Medicine University of North Carolina at Chapel Hill Chapel Hill NCUSA
12. PFCC Partners Long Beach CAUSA
13. the Department of Emergency Medicine Yale School of Medicine New Haven CTUSA
14. and the Department of Emergency Medicine Northwestern University Feinberg School of Medicine Chicago IL USA