1. Bureau of Emergency Medical Services & Trauma System, Arizona Department of Health Services, Phoenix2Arizona Emergency Medicine Research Center, Department of Emergency Medicine, The University of Arizona, Phoenix
2. Arizona Emergency Medicine Research Center, Department of Emergency Medicine, The University of Arizona, Phoenix
3. Department of Emergency Medicine, Mayo Clinic, Jacksonville, Florida
4. Department of Epidemiology and Biostatistics, Mel and Enid Zuckerman College of Public Health, The University of Arizona, Tucson
5. Bureau of Emergency Medical Services & Trauma System, Arizona Department of Health Services, Phoenix
6. Bureau of Tobacco and Chronic Disease, Arizona Department of Health Services, Phoenix
7. The University of Arizona College of Medicine, Phoenix7Maricopa Medical Center, Phoenix, Arizona
8. Phoenix Fire Department, Phoenix, Arizona
9. Mesa Fire and Medical Department, Mesa, Arizona