作者单位:Division of Cardiovascular Sciences, National Heart, Lung, and Blood Institute, Bethesda, MD[1]Department of Medicine, Division of Preventive Medicine, University of Alabama at Birmingham[2]Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL[3]Cardiovascular and Pulmonary Branch, National Heart, Lung, and Blood Institute, Bethesda, MD[4]