1. Department of Population and Public Health Sciences, Wright State University Boonshoft School of Medicine, Fairborn, Ohio;
2. Center for Injury Research and Policy, The Research Institute at Nationwide Children’s Hospital, Columbus, Ohio;
3. Department of Pediatrics, College of Medicine, The Ohio State University, Columbus, Ohio;
4. Safe Transportation Research & Education Center, University of California Berkeley, Berkeley, California;
5. Division of Epidemiology, College of Public Health, The Ohio State University, Columbus, Ohio