1. Faculty of Medicine, Catholic University Leuven, Leuven, Belgium
2. Congenital and Structural Cardiology, University Hospitals Leuven, Leuven, Belgium
3. Department of Cardiovascular Sciences, Catholic University Leuven, Leuven, Belgium
4. Department of Public Health and Primary Care, KU Leuven, Leuven, Belgium
5. Institute of Health and Care Sciences, University of Gothenburg, Gothenburg, Sweden
6. Department of Paediatrics and Child Health, University of Cape Town, Cape Town, South Africa
7. Pediatric Cardiology, University Hospitals Leuven, Leuven, Belgium