1. From the Thoraxcentre, Rotterdam, the Netherlands (P.W.S., M.D., K.T., J.L., P.d.F.); Institute Dante Pazzanese de Cardiologia, Sao Paulo, Brazil (A.A., J.E.S.); Centro Cuore Columbus, Milan, Italy (A.C.), Ospediali Riuniti di Bergamo, Bergamo, Italy (G.G.); Onze Lieve Vrouwe Ziekenhuis, Aalst, Belgium (W.W.); Cardialysis bv, Rotterdam, the Netherlands (W.K.L.); and Institut Cardiovasculaire Paris Sud, Massy, France (M.-C.M.).