1. aDepartment of Pediatrics, Section of Emergency Medicine, University of Colorado School of Medicine, Aurora, Colorado
2. bFirearm Safety Among Children and Teens (FACTS) Consortium, Ann Arbor, Michigan
3. cUniversity of Michigan Injury Prevention Center, School of Medicine
4. dDepartment of Epidemiology, School of Public Health, University of Washington, Seattle, Washington
5. eFirearm Injury & Policy Research Program, Seattle, Washington
6. fMichigan Youth Violence Prevention Center
7. gDepartment of Health Behavior and Health Education, School of Public Health
8. hInstitute for Firearm Injury Prevention
9. iDepartment of Emergency Medicine, School of Medicine
10. jSchool of Social Work, University of Michigan, Ann Arbor, Michigan