1. From the Departments of Medicine (Neurology) (J.R.L., H.W., R.B., C.G., D.T.L.), Surgery (Neurosurgery) (A.H.F., M.J.A., D.S.W., D.T.L.), and Anesthesiology (D.S.W., D.T.L.), Duke University Medical Center, Durham, NC; Department of Neurosurgery (H.W., M.J.M., A.L.C.), The Johns Hopkins Hospital, Baltimore, MD; Duke University School of Medicine (J.F.), Durham, NC; and Multidisciplinary Neuroprotection Laboratory (J.R.L., D.S.W., D.T.L.), Durham, NC.