Key points are not available for this paper at this time.
Department of Rehabilitation Medicine, University of Pennsylvania, Philadelphia, Pennsylvania; Cardiovascular Research Center and the Vascular Research Division, Harvard University, Boston, Massachusetts; Department of Anesthesiology, University of Alabama, Birmingham, Alabama; Division of Cardiovascular Research, University of Toronto, Toronto, Canada; and Division of Heart and Vascular Disease and Division of Lung Disease, National Heart, Lung, and Blood Institute, Bethesda, Maryland
Fishman et al. (1998) studied this question.
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