1. From the Department of Cardiology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands (T.P.v.d.H., P.D., R.D., R.J.d.W., K.T.K., J.P.S.H., J.G.P.T., J.J.P.); Department of Cardiology, Haga Teaching Hospital, The Hague, The Netherlands (M.B., C.S.); and Department of Cardiology, Amphia Hospital, Breda, The Netherlands (M.M.).