1. From the Cardiovascular Biology Research Laboratory, the Zena and Michael Wiener Cardiovascular Institute (R.G., A.P., M.R., J.C., J.F., V.F., J.J.B.), and the Department of Pathology (J.F.), Mount Sinai School of Medicine, New York, NY; the Molecular Cardiology Program, Columbia University, College of Physicians and Surgeons, New York, NY (T.J., S.M., A.M.); and Wyeth-Ayerst, Princeton, NJ (S.A.).