1. Division of Adolescent and Young Adult Medicine, Department of Pediatrics, UPMC Children’s Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
2. Division of Violence Prevention, National Center for Injury Prevention and Control, Centers for Disease Control and Prevention, Atlanta, Georgia
3. University of North Carolina at Chapel Hill School of Education, Chapel Hill
4. Population Council, Washington, District of Columbia
5. Promundo-US, Washington, District of Columbia
6. Division of General Internal Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania