1. Adult Congenital Heart Disease Unit, AORN Dei Colli—Monaldi Hospital, Via Leonardo Bianchi, snc, Naples 80131, Italy
2. Division for Adult Congenital Heart Disease, Department of Cardiovascular Medicine, University Hospital Centre Zagreb, Kišpatićeva ul. 12, 10000, Zagreb, Croatia
3. Adult Congenital Heart Centre and National Centre for Pulmonary Hypertension, Royal Brompton Hospital, Sydney St, SW3 6NP, London, United Kingdom
4. Ibrahim Cardiac Hospital & Research Institute, 122 Kazi Nazrul Islam Ave, Dhaka 1000, Bangladesh
5. Magna Graecia University, Viale Europa, 88100, Catanzaro, Italy
6. Andrzej Frycz Modrzewski Krakow University, Gustawa Herlinga-Grudzińskiego 1, 30-705 Kraków, Poland
7. Harefield Hospital, Hill End Rd, Harefield, Uxbridge UB9 6JH, Royal Brompton & Harefield NHS Foundation Trust, London, United Kingdom
8. Department of Hospital Therapy No. 1, I.M., Sechenov First Moscow State Medical University, Bol'shaya Pirogovskaya Ulitsa, 2, стр. 4, Moscow, Russia
9. University of Leicester, University Rd, Leicester LE1 7RH, United Kingdom
10. Cardiology Departement, Charles Nicolle Hospital Tunis, Faculté de Médecine, Tunis-El Manar University, Bd du 9 Avril 1938, Tunisia
11. University of Padua, Via Giustiniani, 2 - 35128, Padua, Italy
12. Department of Cardiology, Medipol University hospital, TEM Avrupa Otoyolu Göztepe Çıkışı No:, D:1, 34214, İstanbul, Turkey
13. Ukrainian Children’s Cardiac Center, Clinic for Adults, Shuliavka, 02000, Kyiv, Ukraine
14. Shupyk National Healthcare University of Ukraine, 9, Dorohozhytska St, 04112, Kyiv, Ukraine
15. Bambino Gesù Children’s Hospital, Palidoro-Rome, Piazza Sant'Onofrio 4, 00165 Rome, Italy
16. Department of Internal Clinical Sciences, Anesthesiology and Cardiology, “La Sapienza” University of Rome, Piazzale Aldo Moro, 5, 00185, Rome, Italy
17. Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padua, Azienda Ospedale Università Padova, Via Giustiniani, 2, 35128, Padua, Italy
18. Department of Advanced Biomedical Sciences, Federico II University Hospital, Via Sergio Pansini, 5, 80131, Naples, Italy
19. Mediterranea Cardiocentro, Via Orazio, 2, 80122, Naples, Italy
20. Cardiology Department, Bakirkoy Dr Sadi Konuk Training and Research Hospital, Cd No:11, 34147, Istanbul, Turkey
21. Clinic of Cardiovascular Diseases, University of Genoa, Viale Benedetto XV, 6, 16132, Italy
22. University Clinic of Cardiology, Мајка Тереза 17, Mother Teresa 17, Skopje, Republic of North Macedonia
23. Cardiology Department, Porto University Hospital Centre, Largo do Prof. Abel Salazar, 4099-001, Porto, Portugal
24. Department of Internal Medicine and Cardiology, Heart Center Leipzig-University Hospital, Strümpellstraße 39, 04289, Leipzig, Germany
25. Cardiovascular Research Institute Basel (CRIB) and Department of Cardiology, University Hospital Basel, University of Basel, Petersgraben 4, 4031, Basel, Switzerland
26. First Cardiology Clinic, Hippokration Hospital, School of Medicine, University of Athens, 114 Vass Sofias Ave, 11527, Athens, Greece
27. Faculty of Medicine, University of Belgrade, dr Subotića starijeg 8, 11000, Belgrade, Serbia
28. Department of Cardiology, University Medical Center, Zaloška cesta 7, 1000, Ljubljana, Slovenia
29. ACHD Centre, Department of Cardiology and Angiology of Medical Faculty, Slovak Medical University and National Institute of Cardiovascular Diseases, 831 01, Bratislava, Slovakia
30. New Clinic, Yusif Səfərov küçəsi, Baku, Azerbaijan
31. Department of Cardiology, Medical University of Vienna, Spitalgasse 23, 1090, Vienna, Austria
32. Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, 02-091, Warsaw, Poland
33. Cardiology “B” Department, Ibn Sina Hospital Med V University, 62, Jbran Khalil Jbran Street, Souissi, Rabat, Morocco
34. School of Medicine, University of Banja Luka, Save Mrkalja 14, Banja Luka, 78000, Republic of Srpska, Bosnia and Herzegovina
35. University “Ss Cyril and Methodius”, Skopje 1000, North Macedonia
36. Medizinische Klinik I, Abteilung für Kardiologie und Angiologie, Universitätsklinikum Gießen, Klinikstraße 33, 35392, Gießen, Germany
37. Heart Failure and Heart Transplant Unit, Cardiology, Hospital Clínic, C. de Villarroel, 170, 08036, Barcelona, Spain
38. Cardiology Department, Liverpool Heart and Chest Hospital, Thomas Dr, Liverpool L14 3PE, United Kingdom
39. Cardiology Department, National Heart Institute, 5 Ibn Nafise Square, Mit Akaba, Agouza, Giza, Egypt
40. CNR—Regione Toscana, Fondazione Gabriele Monasterio, Via Giuseppe Moruzzi, 1, 56124, Pisa, Italy