1. Department of Medical and Surgical Sciences, Magna Graecia University , Viale Europa, 88100 - Catanzaro , Italy
2. Department of Medical Rehabilitation, Medical Faculty University of Rijeka , Rijeka , Croatia
3. Royal Brompton & Harefield Hospitals, Guys & St Thomas’s NHS Trust and Imperial College , London , UK
4. Department of Cardiology, Guys and St Thomas NHS Trust , London , UK
5. Integrated Adult Congenital Heart Disease Unit, Vall d'Hebron University Hospital-Santa Creu i Sant Pau University Hospital , Barcelona , Spain
6. Department of Cardiology, Karolinska University Hospital , Stockholm , Sweden
7. Department of Medicine, Vita Salute San Raffaele University , Milan , Italy
8. Interventional Cardiology, IRCCS San Raffaele Scientific Institute , Milan , Italy