1. Department of Pediatrics, University of Pittsburgh School of Medicine, and Safar Center for Resuscitation Research, University of Pittsburgh Medical Center, and Pittsburgh Child Advocacy Center, Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania
2. Pediatrics, and Emergency Medicine, University of Pittsburgh School of Medicine, and Pittsburgh Child Advocacy Center, Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania
3. Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh
4. Neurosurgery, University of Pittsburgh School of Medicine, and Safar Center for Resuscitation Research, University of Pittsburgh Medical Center
5. Anesthesiology and Critical Care Medicine, University of Pittsburgh School of Medicine, and Safar Center for Resuscitation Research, University of Pittsburgh Medical Center