1. From the Institute Dante Pazzanese of Cardiology (J.E.S., M.A.C., A.C.A., A.S.A., L.F.T., A.G.M.R.S.), São Paulo, Brazil; Thoraxcenter, Dijkzigt University Hospital (B.J.R., K.K., G.V.L. P.W.S.), Rotterdam, The Netherlands; Cordis, a Johnson and Johnson Company (R.F., J.J.), Warren, NJ; and Brigham and Women’s Hospital (J.J.P.), Boston, Mass.