1 Lifespan Brain Institute, Children's Hospital of Philadelphia, and Penn Medicine, Philadelphia (Cooper, Visoki, Tran, Elbaz, Gataviņš, Barzilay); Program in the History of Science and Medicine, Graduate School of Arts and Sciences, Yale University, New Haven, CT (Cooper); Department of Epidemiology, T.H. Chan School of Public Health, Harvard University, Cambridge, MA (McKetta); Department of Population Medicine, Harvard Medical School, Boston (McKetta); Center for Violence Prevention (Fein) and Department of Child and Adolescent Psychiatry and Behavioral Sciences (Benton, Barzilay), Children's Hospital of Philadelphia, Philadelphia; Department of Pediatrics (Fein), Department of Emergency Medicine (Fein), and Department of Psychiatry (Benton, Barzilay), Perelman School of Medicine, University of Pennsylvania, Philadelphia.