From the New York–Presbyterian Hospital, Columbia University Medical Center and Cardiovascular Research Foundation, New York, NY (G.F.R., A.J.K., P.G., A.J.L., E.C., G.W., H.P., M.F., R.M., G.W.S.), and Mayo Clinic, Rochester, MN (B.J.G.). (At 2012-05-29)
