1. Naval Hospital Yokosuka, Yokosuka, Japan
2. University of Miami/Jackson Memorial Hospital, Miami, FL
3. Creighton University School of Medicine/Valleywise Health Medical Center, Phoenix, AZ
4. University of Arizona College of Medicine, Phoenix, AZ
5. Department of Emergency Medicine, MedStar Georgetown University School of Medicine and Washington Hospital Center, Washington, DC
6. Department of Emergency Medicine, University of South Alabama, Mobile, AL
7. Virginia Tech Carilion School of Medicine, Carilion Clinic, Roanoke, VA