1. Department of Pediatrics, University of Washington, Seattle, Washington, USA
2. Firearm Injury & Policy Research Program, University of Washington, Seattle, Washington, USA
3. Department of Psychiatry & Behavioral Sciences, University of Washington, Seattle, Washington, USA
4. Department of Family Medicine, University of Washington School of Medicine, Seattle, Washington, USA
5. School of Psychology, University of Washington, Seattle, Washington, USA
6. Department of Epidemiology, School of Public Health, University of Washington, Seattle, Washington, USA
7. School of Medicine, Division of Gerontology and Geriatric Medicine, School of Public Health, Department of Health Systems and Population Health, University of Washington, Seattle, Washington, USA