1. From Robert M. Berne Cardiovascular Research Center (G.K., A.K., I.J.S., N.L.) and Department of Pharmacology (N.L.), University of Virginia, Charlottesville, Va; Department of Vascular Biology and Thrombosis Research (G.K., E.I., A.F., V.N.B., B.R.B.), Institute of Immunology (S.B.), and Department of Medical and Chemical Laboratory Diagnostics (M.E.), Medical University of Vienna, Austria.