1. Neonatal Intensive Care Unit, Fetal Neonatal and Cardiological Science Research Area, “Bambino Gesù” Children’s Hospital, IRCCS, 00165 Rome, Italy
2. Neonatal Intensive Care Unit, Fondazione IRCCS San Gerardo Dei Tintori, 20900 Monza, Italy
3. Neonatal Intensive Care Unit, Azienda Ospedaliera di Cosenza, 87100 Cosenza, Italy
4. Pediatric Department, G. Fornaroli Hospital, 20013 Magenta, Italy