1. From Division of Rheumatology and Clinical Immunology (B.H.), Department of Preventive Medicine and Epidemiology (P.L.), Division of Cardiology (M.M.), University of Maryland School of Medicine, University of Maryland, Baltimore, Md; the Geriatrics Research, Education, and Clinical Center (S.K.), Baltimore Department of Veterans Affairs Medical Center, Baltimore, Md; and the Department of Neurology (S.K.), University of Maryland at Baltimore, Md.