1. Departments of Critical Care Medicine, Anesthesiology and Pediatrics, Safar Center for Resuscitation Research, Pittsburgh, Pennsylvania; University of Pittsburgh Brain Trauma Research Center, Pittsburgh, Pennsylvania
2. Safar Center for Resuscitation Research, Pittsburgh, Pennsylvania and Pittsburgh NMR Center for Biomedical Research, Carnegie Mellon University, Pittsburgh, Pennsylvania
3. Department of Neurosurgery, Safar Center for Resuscitation Research, Pittsburgh, Pennsylvania; University of Pittsburgh Brain Trauma Research Center, Pittsburgh, Pennsylvania
4. Departments of Critical Care Medicine and Anesthesiology, Safar Center for Resuscitation Research, Pittsburgh, Pennsylvania
5. Pittsburgh NMR Center for Biomedical Research, Carnegie Mellon University, Pittsburgh, Pennsylvania
6. Pittsburgh NMR Center for Biomedical Research and Department of Biological Sciences, Carnegie Mellon University, Pittsburgh, Pennsylvania