1. From the Departments of Molecular Biology (E.M.S., L.B.S., R.D.G., J.A.R., E.N.O.), Cardiovascular and Thoracic Surgery (J.E.T., J.M.D.), Internal Medicine (R.D.G., H.S.), and Pathology (J.A.R.), University of Texas Southwestern Medical Center, Dallas; and Department of Medicine and Clinical Science (H.K., K.K.), Kyoto Graduate School of Medicine, Japan.