1. Department of Health, Behavior and Society, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
2. Division of Population Health, Centers for Disease Control and Prevention, Atlanta, GA, USA
3. National Study Center for Trauma and Emergency Medical Systems, Shock, Trauma and Anesthesiology Research-Organized Research Center, University of Maryland School of Medicine, Baltimore, MD, USA
4. Maryland Department of Transportation, Motor Vehicle Administration’s Highway Safety Office, Glen Burnie, MD, USA
5. R Adams Cowley Shock Trauma Center, University of Maryland Medical Center, Baltimore, MD, USA