1 Department of Cardiology, San Sebastiano Martire Hospital, Frascati, Rome, Italy.
2 Department of Cardiology, San Sebastiano Martire Hospital, Frascati, Rome, Italy; A.Fa.R, Associazione Fatebenefratelli per la Ricerca, Isola Tiberina, Rome, Italy.
3 Department of Obstetrics and Gynecology, Tor Vergata University, Rome, Italy.
4 A.Fa.R, Associazione Fatebenefratelli per la Ricerca, Isola Tiberina, Rome, Italy.
5 Neonatal Intensive Care Unit, Policlinico Umberto I, La Sapienza University, Rome, Italy.