Affiliation: | (1) Department of Anesthesiology, Harborview Medical Center, 325 Ninth Avenue, P.O. Box 359724, Seattle, WA 98104, USA;(2) Department of Pediatrics, Harborview Medical Center, 325 Ninth Avenue, P.O. Box 359724, Seattle, WA 98104, USA;(3) Departments of Neurological Surgery, University of Washington, 1959 NE Pacific Street, Seattle, WA 98195, USA;(4) Cerebrovascular Laboratory, Harborview Medical Center, 325 Ninth Ave, Seattle, WA 98104, USA;(5) Department of Anesthesiology, University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA 19104, USA |