1. School of Medicine University of California San Diego California
2. Gillings School of Global Public Health University of North Carolina at Chapel Hill Chapel Hill North Carolina
3. School of Medicine University of Virgina Charlottesville Virginia
4. Division of Emergency Medicine Weill Cornell Medical College New York New York
5. Department of Emergency MedicineUniversity of North Carolina at Chapel Hill Chapel Hill North Carolina
6. Division of Geriatrics Department of Medicine University of North Carolina at Chapel Hill Chapel Hill North Carolina