1. University of Connecticut Health Center; Farmington Connecticut U.S.A
2. Johns Hopkins School of Medicine; Baltimore Maryland U.S.A
3. Department of Health Policy and Management; Johns Hopkins Bloomberg School of Public Health; Baltimore Maryland U.S.A
4. Department of Health, Behavior and Society; Johns Hopkins Bloomberg School of Public Health; Baltimore Maryland U.S.A
5. Division of Emergency Medicine; Johns Hopkins Medicine; Baltimore Maryland U.S.A