1. Department of Pediatric Cardiology and Congenital Heart Disease, National Research Council-Tuscany Region G. Monasterio Foundation (FTGM) , Massa, Pisa 54100 , Italy
2. Paediatric Cardiology and Congenital Heart Disease, Woman and Children’s Health Department, University of Padua; Experimental Cardiology, Paediatric Research Institute (IRP) , Padua , Italy
3. Department of Congenital Heart Disease and Pediatric Cardiology, DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, University Hospital Schleswig-Holstein , Kiel , Germany
4. Division of Pediatric Cardiology, ASST Giovanni XXIII , Bergamo , Italy
5. Division Pediatric Cardiology, UT Southwestern , Dallas, TX , USA
6. Department Pediatric Cardiology , Malaga, Hospital Materno Infantil, Andalucia , Spain
7. Department of Paediatric Cardiology, University Hospital Southampton , Southampton , UK
8. Department Pediatric Cardiology, Wilhelmina Children’s Hospital/UMCU , Utrecht , The Netherlands
9. Department of Pediatrics, Division of Pediatric Cardiology, Medical University of Gratz , Gratz , Austria
10. Great Ormond Street Hospital for Children , London , UK
11. Department Pediatric Cardiology, Evelina London Children’s Hospital , London , UK
12. Department Paediatric Cardiology, Children’s Health Ireland at Crumlin , Dublin , Ireland
13. School of Medicine, University College Dublin , Belfield, Dublin , Ireland
14. Maastricht School of Health Professions Education , Maastricht , The Netherlands