1 Department of Prenatal Diagnosis, Altamedica, Fetal-Maternal Medical Centre, Rome, Italy.
2 Department of Obstetrics and Gynaecology, Campus Bio Medico University, Via Alvaro del Portillo, 200, 00128, Rome, Italy. s.capriglione@unicampus.it.
3 Department of Reproductive Medicine, Altamedica, Fetal-Maternal Medical Centre, Rome, Italy.
4 Scientific Direction, Biostatistical Unit, Regina Elena National Cancer Institute, Rome, Italy.