1. From EMO Centro Cuore Columbus, Milan, Italy (A.C., C.D.M.); Lenox Hill Hospital, New York, NY (J.W.M., M.B.L.); Institut Cardiovasculaire Paris Sud, Massy, France (M.C.M., Y.L.); University Heart Center Erlangen, Germany (J.L.); Mayo Clinic, Rochester, Minn (D.R.H.); Milan Cardiovascular Research, Milan, Italy (V.S.); and Cordis Corp, Waterloo, Brussels (B.D.).