1. Division of Emergency Medicine, Nationwide Children’s Hospital, Columbus, Ohio
2. Center for Injury Research and Prevention, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
3. Center for Autism Research, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
4. Department of Child and Adolescent Psychiatry and Behavioral Sciences, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
5. Department of Psychiatry, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
6. Division of Emergency Medicine, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania