1. Department of Cardiology, University of Palermo, Palermo, Italy
2. Department of Cardiology, University College of Dublin, Mater Misericordiae University Hospital and Our Lady’s Children’s Hospital, Dublin, Republic of Ireland
3. Department of Cardiovascular, Respiratory, Nephrologic, Anesthesiologic and Geriatric Sciences, “La Sapienza” University of Rome, Rome, Italy
4. Department of Pediatrics, Obstetrics-Gynecology and Urology, “La Sapienza” University of Rome, Rome, Italy
5. Neonatal Intensive Care Unit, University of Cagliari, Cagliari, Italy
6. Cardiology and Interventional Cardiology Department, Tor Vergata” University of Rome, Rome, Italy