| Affiliation: | 1. Harvard Affiliated Emergency Medicine Residency, , Boston, MA;2. Department of Emergency Medicine, General Medicine Division, Massachusetts General Hospital, , Boston, MA;3. Department of Medicine , Massachusetts General Hospital, , Boston, MA;4. Division of Emergency Medicine , Harvard Medical School, , Boston, MA;5. Department of Health Policy and Management, Harvard School of Public Health , , Boston, MA;6. Department of Medicine , Massachusetts General Hospital, , Boston, MA;7. Department of Medicine (YC), Harvard Medical School, , Boston, MA |
