1. Department of Pediatrics, Division of Child Advocacy, Children's Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Safar Center for Resuscitation Research, Pittsburgh, Pennsylvania.
2. Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.
3. Statistical Analysis and Measurement Consultants, Inc., Lanexa, Virginia.
4. Division of Child Advocacy, Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania.
5. Department of Neurosurgery, Children's Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Safar Center for Resuscitation Research, Pittsburgh, Pennsylvania.