1. Department of Emergency Medicine Rush University Medical Center Chicago Illinois USA
2. Department of Emergency Medicine David Geffen School of Medicine at UCLA Los Angeles California USA
3. Department of Emergency Medicine Stanford University Palo Alto California USA
4. Department of Emergency Medicine University of Florida College of Medicine – Jacksonville Jacksonville Florida USA
5. Department of Emergency Medicine The Ohio State University Wexner Medical Center Columbus Ohio USA
6. Department of Emergency Medicine Geisinger Medical Center Danville Pennsylvania USA
7. Department of Emergency Medicine University of Utah Hospital Salt Lake City Utah USA
8. Department of Emergency Medicine Massachusetts General Hospital/Harvard Medical School Boston Massachusetts USA