1. Los Angeles County EMS Agency, Santa Fe Springs, California
2. Harbor-UCLA Medical Center Department of Emergency Medicine and the Lundquist Institute for Research, Torrance, California
3. David Geffen School of Medicine at UCLA, Los Angeles, California
4. Department of Emergency Medicine, Ronald Reagan UCLA Medical Center, Los Angeles, California
5. University of California Los Angeles, Los Angeles, California
6. Santa Clara University, Santa Clara, California
7. Los Angeles County Fire Department, Los Angeles, California