1. From the Harvard Medical School, Boston, MA (J.C.H., C.M.C., S.R.B., L.S., S.R.M., P.U.G., H.K.G., J.L.J.); Department of Psychiatry (J.C.H., E.E.B., C.M.C., S.R.B., S.V.M., L.S.) and Division of Cardiology, Department of Medicine (A.M.B., P.U.G., H.G., J.L.J.), Massachusetts General Hospital, Boston; and Division of Cardiology, Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA (S.R.M.).