1. From the Divisions of Cardiovascular Diseases (V.S.C., Y.S., K.T.W.) and Endocrinology (I.C.G.), Department of Medicine, and Departments of Surgery (S.K.B.), Obstetrics and Gynecology (R.A.A.), Pediatrics (L.K.M.), and Orthopaedic Surgery (Z.X., R.A.S.), University of Tennessee Health Science Center, Memphis.