1. Children’s Hospital Colorado, Aurora, Colorado;
2. Section of Emergency Medicine, Department of Pediatrics, School of Medicine,
3. Department of Communication, College of Liberal Arts and Sciences, University of Colorado Denver, Denver, Colorado;
4. Department of Epidemiology, Colorado School of Public Health, University of Colorado Anschutz, Aurora, Colorado; and
5. Pediatric Injury Prevention, Education, and Research Program, Aurora, Colorado