1. Institute of Clinical Physiology, National Research Institute, 56123 Pisa, Italy
2. Pediatric Cardiology and GUCH Unit, Fondazione “G. Monasterio” CNR-Regione Toscana, 541200 Massa, Italy
3. Department of Pediatric Cardiology, Cardiac Surgery and Heart Lung Transplantation, Bambino Gesù Children’s Hospital, IRCCS, 00100 Rome, Italy
4. U.O.C. Cardiologia Pediatrica, P.O. “G. Di Cristina”, ARNAS Civico, 90123 Palermo, Italy
5. Department of Pediatric Cardiology, Centro Cardiologico Pediatrico Mediterraneo, 98039 Taormina, Italy
6. Pediatric Cardiology, Azienda Ospedaliero-Universitaria Meyer, 50100 Florence, Italy
7. Department of Pediatric and Congenital Cardiac Surgery and Cardiology, Azienda Ospedaliero-Universitaria Ospedali Riuniti Ancona “Umberto I, G. M. Lancisi, G. Salesi”, 60123 Ancona, Italy
8. Department of Radiology, Fondazione Toscana Gabriele Monasterio, 56123 Pisa, Italy
9. Department of Radiology, Cardinal Massaia Hospital, 14100 Asti, Italy
10. Department of Radiology, University Hospital Vittorio Emanuele Catania, 95100 Catania, Italy
11. Pediatric and Adult Cardiovascular, Thoraco-Abdominal and Emergency Radiology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138 Bologna, Italy
12. Cardiologia Pediatrica, Ospedale Pediatrico Giovanni XXIII di Bari, Via Amendola 207, 70100 Bari, Italy
13. USSD Cardiologia Pediatrica, ASST Grande Ospedale Metropolitano Niguarda, 20126 Milano, Italy
14. Division of Cardiovascular Medicine, Fondazione G. Monasterio CNR-Regione Toscana, 56123 Pisa, Italy
15. Department of Radiology, IRCCS Policlinico San Donato, San Donato Milanese, 20097 Milano, Italy
16. U.O.C. di Radiodiagnostica, P.O. “G. Di Cristina”, ARNAS Civico, 90123 Palermo, Italy
17. Department of Radiology, University of Verona, 37100 Verona, Italy
18. Division of Cardiology, Department of Medicine, University of Verona, 37100 Verona, Italy
19. Department of Cardiology and Cardiovascular Surgery, Papa Giovanni XXIII Hospital, 24100 Bergamo, Italy
20. Radiology Unit, IRCCS Istituto Giannina Gaslini, 16147 Genoa, Italy
21. Advanced Cardiothoracic Imaging Unit, Department of Imaging, Bambino Gesù Children’s Hospital, IRCCS, 00100 Rome, Italy
22. Pediatric Cardiology Unit, General and University Hospital, 43121 Parma, Italy
23. Pediatric Cardiology Department, Giannina Gaslini Research Institute and Children Hospital, 16100 Genova, Italy
24. Inf Department, Fondazione “G. Monasterio” CNR-Regione Toscana, 541200 Massa, Italy