1. Department of Emergency Medicine University of Massachusetts Medical School Worcester Massachusetts USA
2. Department of Emergency Medicine Vanderbilt University Nashville Tennessee USA
3. Department of Emergency Medicine University of Washington Seattle Washington USA
4. Department of Emergency Medicine Loma Linda University Loma Linda California USA
5. Department of Emergency Medicine University of Missouri–Kansas City Kansas City Missouri USA
6. Department of Emergency Medicine Geisinger Commonwealth School of Medicine Danville Pennsylvania USA
7. Department of Emergency Medicine Thomas Jefferson University Philadelphia Pennsylvania USA