Affiliation: | (1) Section on Brain Physiology and Metabolism, NIA, NIH, Bethesda, MD 20892-4255, USA;(2) Division of Heart and Vascular Diseases, NHLBI, NIH, Bethesda, MD 20892-4255, USA;(3) Department of Anesthesiology, University of Maryland School of Medicine, Baltimore, MD 21201, USA |