1. From the Departments of Interventional Cardiology (M.J.S., B.M.R., J.M.t.B., E.T.B., B.J.R., F.D.E., E.G.M.) and Research and Statistics (J.C.K., M.A.R.B.), St Antonius Hospital Nieuwegein, Nieuwegein; and Department of Interventional Cardiology, Onze Lieve Vrouwe Gasthuis, Amsterdam (G.J.L., F.K.), the Netherlands.