[1] Leiden Univ, Div Pediat Cardiol, Dept Pediat, Med Ctr, Albinusdreef 2, NL-2333 ZA Leiden, Netherlands
[2] Netherlands Heart Inst, Moreelsepk 1, NL-3511 EP Utrecht, Netherlands
[3] Leiden Univ, Dept Radiol, Med Ctr, Albinusdreef 2, NL-2333 ZA Leiden, Netherlands
[4] Emma Childrens Hosp, Acad Med Ctr, Div Pediat Cardiol, Dept Pediat, Meibergdreef 9, NL-1105 AZ Amsterdam, Netherlands