1. EUROMACS, EACTS House , Windsor, United Kingdom
2. Department of Congenital Pediatric Surgery, Children’s Hospital Zürich , Zürich, Switzerland
3. Quality and Outcomes Research Unit, University Hospital Birmingham , Birmingham, UK
4. Ospedale Bambino Gesù , Rome, Italy
5. Universitair Ziekenhuis Gent , Gent, Belgium
6. Department of Cardio-Thoracic Surgery, Erasmus MC , Rotterdam, Netherlands
7. University of Groningen, University Medical Center Groningen , Groningen, Netherlands
8. Department of Cardiac Surgery , Innsbruck, Austria
9. Klinika Kardiochirurgie NUSCH , Bratislava, Slovakia
10. Ospedale Papa Giovanni XIII , Bergamo, Italy
11. Department of Pediatric Intensive Care, Erasmus MC , Rotterdam, Netherlands
12. San Orsola Hospital , Bologna, Italy
13. Pediatric Cardiac Surgery Department, Regina Margherita Children’s Hospital , Torino, Italy
14. Center for Cardiovascular and Transplant Surgery Brno
15. Institute for Clinical and Experimental Medicine (IKEM) , Prague, Czech Republic
16. Ege University Hospital , Izmir, Turkey
17. La Paz University Hospital , Madrid, Spain
18. National Research Cardiac Surgery Center , Astana, Kazakhstan
19. Utrecht University Medical Center , Utrecht, Netherlands
20. Clinic for Pediatric Cardiac Surgery and Congenital Heart Defects, Heart and Diabetes Centre North Rhine-Westphalia , Bad Oeynhausen, Germany
21. Department of Cardiac Surgery, Transplantology and Vascular Surgery, Silesian Center for Heart Diseases , Zabrze, Poland
22. Department of Congenital Heart Defects and Pediatric Cardiology, University Heart Center Freiburg-Bad Krozingen, University of Freiburg , Germany
23. Department of Herz- und Gefässchirurgie, University Hospital Bern , Switzerland
24. Great Ormond Street Hospital , London, UK
25. Vienna Medical University , Vienna, Austria
26. Katholieke Universiteit Leuven , Leuven, Belgium
27. Department of Congenital Heart Disease and Pediatric Cardiology, Deutsches Herzzentrum Berlin , Berlin, Germany