1. From the Atherosclerosis Research Unit, Division of Cardiovascular Medicine, Departments of Medicine (H.T., J.L.B., P.G.Y., L.D., M.F.L., S.F.), Pharmacology (M.F.L.), and Pathology, Microbiology, and Immunology (S.F.), Vanderbilt University Medical Center, Nashville, TN; and Department of Cell Biology and Anatomy, School of Medicine, University of South Carolina, Columbia (D.F.).