1. From the Donald W. Reynolds Cardiovascular Clinical Research Center (J.A.H.) and the Departments of Internal Medicine (Cardiology) (Y.G.N., K.B., N.W., M.O., N.S., A.D., J.C., G.L., D.J.M., R.D.G., B.A.R., J.A.H.), Pathology (D.C.), and Molecular Biology (R.D.G., J.A.H.), University of Texas Southwestern Medical Center, Dallas.