1. Pediatric Cardiology Azienda Ospedaliera Universitaria Meyer Florence Italy
2. Pediatric Cardiology Fondazione G. Monasterio CNR‐Regione Toscana Massa Italy
3. Division of Cardiology Big Metropolitan Hospital Reggio Calabria Italy
4. Division of Cardiology Azienda Ospedaliera Papa Giovanni XXIII Bergamo Italy
5. UOC Cardiologia Clinica e Riabilitativa San Filippo Neri Hospital Rome Italy
6. Pediatric Cardiology Department of Cardiology Monaldi Hospital, “L. Vanvitelli” University Naples Italy
7. Division of Cardiology A. Murri Hospital Fermo Italy
8. Division of Cardiology Garibaldi Nesima Hospital Catania Italy