1. From the Division of Cardiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Mass (M.J., L.C., J.S., M.B., J.G., Y.N., R.L.); Biogen Idec, Inc, Cambridge, Mass (A.J., L.S., J.S.T., C.A., M.P., T.C., J.M.L., M.Z.W., Y.S., T.S.Z., J.S.M., L.C.B.); and Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, Mass (J.G., F.S.). L.C. and T.C. are currently at Novartis, Cambridge, Mass; C.C.L. is currently at the Department of Cardiovascular Medicine, Vanderbilt...