1. Inherited Cardiovascular Diseases, Great Ormond Street Hospital for Children NHS Foundation Trust, London WC1N 3JH, UK
2. Paediatric Cardiology Department, Royal Brompton and Harefield Hospitals, Guy’s and St. Thomas’ NHS Foundation Trust, London SW3 5NP, UK
3. Department of Experimental and Clinical Medicine, Magna Graecia University, 88100 Catanzaro, Italy
4. Cardiology Department, CMR Unit, Royal Brompton and Harefield Hospitals, Guys’ and St. Thomas’ NHS Trust, London SW3 5NP, UK
5. Cardiovascular Sciences Department—AOU “Ospedali Riuniti”, 60126 Ancona, Italy
6. Adult Congenital Heart Disease Unit, A.O. dei Colli, Monaldi Hospital, 80131 Naples, Italy
7. San Giovanni di Dio Hospital, 50143 Florence, Italy
8. Department of Clinical and Experimental Medicine, Careggi University Hospital, 50134 Florence, Italy
9. Centre for Cardiovascular Imaging, Great Ormond Street Hospital for Children NHS Foundation Trust, London WC1N 3JH, UK
10. Department of Neuroscience, Imaging and Clinical Sciences, “G.d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy
11. Division of Cardiology and Cardio Lab, Department of Clinical Sciences and Translational Medicine, University of Rome Tor Vergata, 00133 Rome, Italy
12. School of Medicine, University College of Dublin, Mater Misericordiae University Hospital and Children’s Health Ireland Crumlin, D07 R2WY Dublin, Ireland
13. Department of Cardiology, King George’s Medical University, Lucknow 226003, India
14. Nuclear Medicine Unit, St. Salvatore Hospital, 67100 L’Aquila, Italy
15. Clinical Pathways and Epidemiology Unit, Bambino Gesù Children’s Hospital IRCCS, 00165 Rome, Italy