1. Pediatric and Congenital Cardiac Surgery Unit, Department of Thoracic, Cardiac and Vascular Sciences, University of Padua, Via Giustiniani 2, Padua, Italy
2. Pediatric Cardiology Unit, Department of Child and Woman’s Health, University of Padua, Via Giustiniani 3, Padua, Italy
3. Unit of Biostatistics, Epidemiology and Public Health Unit, Department of Thoracic, Cardiac and Vascular Sciences, University of Padua, via Loredan 18, Padua, Italy
4. Pediatric and Congenital Cardiac Surgery Unit, Department of Thoracic, Cardiac and Vascular Sciences, University of Padua, Padua, Italy
5. Cardiac surgery unit
6. Pediatric Cardiology Unit, Department of Child and Woman’s Health, University of Padua, Padua, Italy
7. Cardiology unit
8. Pediatric and Congenital Cardiology Unit, Hospital of Bolzano, Bolzano, Italy
9. Pediatric Cardiology and Cardiac Surgery Unit of Guatemala, UNICARP, Guatemala City, Guatemala
10. Centre for the Diagnosis and Treatment of Congenital Heart Defects, Ospedali Riuniti di, Bergamo, Italy
11. Pediatric Cardiology Unit, Città della Salute e della Scienza, Department of Public Health and Pediatrics, University di Torino, Torino, Italy
12. Pediatric Cardiac Surgery Unit, Department of Pediatric Cardiology and Cardiovascular Surgery, Istituto Giannina Gaslini- IRCS, Genoa, Italy
13. Department of Paediatric Cardiology and Cardiac Surgery and Adult Congenital Heart Disease, IRCCS Policlinico San Donato Milanese, Italy
14. Division of Pediatric Cardiology, Azienda Ospedaliero-Universitaria Meyer, Firenze, Italy
15. Department of Pediatric Cardiology and Cardiac surgery, Bambino Gesù Children's Hospital IRCCS, Rome, Italy
16. Department of Pediatric Cardiology and Pediatric and Adult Cardiac Surgery, University di Bologna, Bologna, Italy
17. Paediatric Cardiology and Pediatric Cardiac Surgery, IInd University of Naples, Naples, Italy
18. Pediatric and Adult Congenital Cardiology and Cardiac Surgery units, Heart Hospital, G. Monasterio Foundation, Massa, Italy
19. Department of Pediatric and Congenital Cardiac Surgery and Cardiology, Ospedali Riuniti di Ancona, Ancona, Italy
20. Pediatric Cardiology Unit, Ospedale Santa Chiara di Trento, Trento, Italy
21. Department of Molecular and Clinical Medicine, Children’s Heart Center, The Queen Silvia’s Children’s Hospital, Göteborg, Sweden
22. Deprtment for Cardiovascular Surgery, University of Bern, Bern, Switzerland
23. Center for Heart and Vascular Care, Section of Cardiovascular Surgery and Cardiac Anesthesia, Anadolu Medical Center Hospital, Turkey
24. Department of Cardiothoracic Surgery, Hospital de Santa Marta and Nova Medical School, Lisbon, Portugal
25. Department of Cardiothoracic Surgery, Leiden University Medical Center, Leiden, Netherlands
26. Department of Pediatric Cardio-Thoracic Surgery, Deutsches Kinderherzzentrum, Sankt Augustin, Germany
27. Department for Pediatric Cardiothoracic Surgery, The Children’s Memorial Health Institute, Warsaw, Poland
28. Service of Cardiothoracic Surgery, Children’s Hospital, Hopital de la Timone, Marseille, France
29. Department of Cardiovascular Surgery, University Hospital of Lausanne CHUV, Lausanne, Switzerland
30. Pediatric and Congenital Cardiac Surgery and Pediatrics, Cliniques universitaires Saint-Luc UCL, Bruxelles, Belgium
31. Department of Surgery and Cardiology, Hospital for Children and Adolescents, Helsinki University Central Hospital, Helsinki, Finland
32. Athens Heart Surgery Institute and Department of Pediatric and Congenital Cardiac Surgery, Iaso Children’s Hospital, Athens, Greece
33. Department of Cardiovascular Surgery, German Heart Center Munich at the Technical University, Munich, Germany
34. Department of Cardiac Surgery, University Hospital Leuven, Catholic University Leuven Leuven, Belgium
35. Children’s Heart Centre, University Hospital Motol, Prague, Czech Republic
36. Department of Pediatrics, Division of Cardiology and Cardiovascular Surgery, Labatt Family Heart Centre, and Department of Diagnostic Imaging, Hospital for Sick Children, University of Toronto, Canada
37. Diagnostic image unit
38. Pediatric Cardiac Surgery, Centro Cardiovascular CEDIMAT, Santo Domingo, Dominican Republic
39. Pediatric and Congenital Cardiology Unit, Hospital Louis Pradel, University Medical Center of Lyon, France
40. Department of Cardiology, Academic Medical Center of Amsterdam, Amsterdam, Netherlands
41. Departments of Congenital Cardiothoracic Surgery Thoraxcentrum, University Medical Center Groningen, Groningen, Netherlands
42. Division of Pediatric Cardiology and Congenital Cardiovascular Surgery, University Children’s Hospital, Zurich, Switzerland
43. Cardiac Surgery Unit, Royal Children’s Hospital, Melbourne, Australia
44. Division of Pediatric Cardiology, Department of Pediatrics, Medical University Graz, Graz, Austria
45. Third Pediatric Clinic, Department of Pediatric Cardiology, “Louis Turcanu” Emergency Children Hospital Timisoara, University of Medicine and Pharmacy “Victor Babes” Timisoara, Roman
46. Department of Pediatric Cardiology, University of Bonn, Bonn, Germany
47. Department of Paediatric Cardiology, Children's Hospital, Toulouse, France
48. Pediatric Cardiology Unit, Hospital Infantil de Mexico, Mexico City, Mexico
49. Paediatric Cardiac Surgery Department, Gregorio Marañón Hospital, Madrid, Spain
50. Department of Pediatric Cardiology and Pediatric Cardiac Surgery, Royal Brompton Hospital, London, UK
51. Department of Pediatric and Congenital Cardiac Surgery, Morgan Stanley Children's Hospital of New York-Presbyterian, Columbia University Medical Center, NY, USA
52. Pediatric and Congenital Cardiac Surgery Unit and Pediatric Cardiology Unit, East Midlands Congenital Heart Centre, Glenfield hospital, Leicester, UK
53. Division of Pediatric Cardiology and Cardiac Surgery, King Faisal Specialist Hospital & Research Center, Riyadh, Saudi Arabia
54. Department of Pediatric Cardiology Poznan University of Medical Sciences, Poznan, Poland
55. Cardiac Surgery Department, Ukrainian Children’s Cardiac Center, Kyiv, Ukraine
56. Division of Cardiovascular Surgery, Fundacion Favaloro University Hospital, Buenos Aires, Argentina
57. Division of Cardiac Surgery, The Johns Hopkins Hospital, Baltimore, MD, USA
58. Pediatric Cardiac Surgery Unit, Caracas, Venezuela
59. Cardiovascular Pathology Unit, Department of Cardiac, Thoracic and Vascular Sciences, University of Padua, Padua, Italy
60. Department of Statistical Sciences of the University of Padua, Padua, Italy