Professor, Department of Pediatrics; Professor, Department of Epidemiology; Co‐director, ([email protected]), Harborview Firearm Injury Policy and Research Program, University of Washington. 325 9th Avenue, Box 359960, Seattle, Washington, 98104; Children's Hospital Guild Association Endowed Chair in Pediatric Health Outcomes Research, Center for Child Health, Behavior and Development, Seattle Children's Hospital; 4800 Sandpoint Way NE, Seattle, WA 98105