1. From the Department of Cardiology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands (M.T.B., S.G.B., P.C.M.H., J.A.Z., M.H., D.A.v.H., A.B., J.G.P.T., H.L.T., R.W.K.); Interuniversity Cardiology Institute Netherlands, Utrecht, The Netherlands (A.B.).