1. Department of Neurosurgery, Penn State University College of Medicine, Penn State Children’s Hospital, Hershey, Pennsylvania2Department of Pediatrics, Penn State University College of Medicine, Penn State Children’s Hospital, Hershey, Pennsylvania
2. Department of Neurosurgery, Penn State University College of Medicine, Penn State Children’s Hospital, Hershey, Pennsylvania
3. Department of Public Health Sciences, Penn State University College of Medicine, Penn State Children’s Hospital, Hershey, Pennsylvania
4. Department of Public Health Sciences, Penn State University College of Medicine, Penn State Children’s Hospital, Hershey, Pennsylvania4Department of Pediatrics, University of Washington, Seattle5Children’s Core for Biomedical Statistics, Seattle Children’s Research Institute, Seattle, Washington
5. Department of Pediatrics, Penn State University College of Medicine, Penn State Children’s Hospital, Hershey, Pennsylvania3Department of Public Health Sciences, Penn State University College of Medicine, Penn State Children’s Hospital, Hershey, Pennsylvania
6. Department of Pediatrics, University of Pennsylvania School of Medicine, Children’s Hospital of Philadelphia, Philadelphia
7. Department of Pediatrics, University of Pittsburgh School of Medicine, Children’s Hospital of Pittsburgh of the University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
8. Division of Violence Prevention, Centers for Disease Control and Prevention (CDC), Atlanta, Georgia