1. From the Department of Pediatric Cardiology (B.S., N.A.B.), Emma Children's Hospital, Academic Medical Center, Amsterdam, The Netherlands; the Department of Cardiology (L.J.W., B.J.M.M., B.J.B., R.J.d.W.) and the Department of Cardiothoracic Surgery (M.G.H.), Academic Medical Center, Amsterdam, The Netherlands; the Department of Cardiology (L.J.W.), Medisch Spectrum Twente, Enschede, The Netherlands; and the Department of Pediatric Cardiology (N.A.B.), Leiden University Medical Center, Leiden, The...