1. Department of Critical Care Medicine, Safar Center for Resuscitation Research and the Children's Hospital of Pittsburgh of UPMC, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania.
2. Department of Neurological Surgery, Safar Center for Resuscitation Research and the Children's Hospital of Pittsburgh of UPMC, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania.
3. Department of Environmental and Occupational Health, Center for Free Radical and Antioxidant Health, Pittsburgh, Pennsylvania.
4. Children's Neuroscience Institute, Phoenix Children's Hospital, Phoenix, Arizona.
5. Department of Pediatrics, Safar Center for Resuscitation Research and the Children's Hospital of Pittsburgh of UPMC, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania.