1. KU Leuven Department of Public Health and Primary Care, KU Leuven—University of Leuven , Kapucijnenvoer 35 PB7001, Leuven 3000 , Belgium
2. Institute of Health and Care Sciences, University of Gothenburg , Arvid Wallgrens backe 1, Gothenburg 413 46 , Sweden
3. Department of Paediatrics and Child Health, University of Cape Town , Klipfontein Rd, Rondebosch, Cape Town 7700 , South Africa
4. Department of Cardiovascular Sciences, KU Leuven, University of Leuven , Kapucijnenvoer 35 PB7001, Leuven 3000 , Belgium
5. Division of Congenital and Structural Cardiology, University Hospitals Leuven , Herestraat 49, Leuven 3000 , Belgium
6. Research Foundation Flanders (FWO) , Leuvenseweg 38, Brussels 1000 , Belgium