1 Fetal and Pediatric Cardiology Unit, "San Giovanni Calibita" Fatebenefratelli Isola Tiberina Hospital, Rome, Italy; Neonatology and Neonatal Intensive Care Unit, "San Giovanni Calibita" Fatebenefratelli Isola Tiberina Hospital, Rome, Italy. Electronic address: gerardo.piacentini@fbf-isola.it.
2 Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy.
3 Fetal and Pediatric Cardiology Unit, "San Giovanni Calibita" Fatebenefratelli Isola Tiberina Hospital, Rome, Italy; Neonatology and Neonatal Intensive Care Unit, "San Giovanni Calibita" Fatebenefratelli Isola Tiberina Hospital, Rome, Italy.
4 Neonatology and Neonatal Intensive Care Unit, "San Giovanni Calibita" Fatebenefratelli Isola Tiberina Hospital, Rome, Italy.