From the Cardiovascular Biology Research Laboratory (A.S., J.O., J.J.B.), Zena and Michael A. Wiener Cardiovascular Institute (A.S., J.O., V.F.), Division of Thrombosis (J.H., M.D., Y.N.), and Division of Endocrinology (J.C.), Mount Sinai School of Medicine, New York, NY. (At 2003-02-25)