Affiliation: | 1. Department of Gynecology and Obstetrics-‘Federico II’ University, Naples, Italy;2. Department of Obstetrics and Gynecology—V. Buzzi Hospital ICP Milano, Italy;3. Ultrasound and Prenatal Diagnosis Unit, Sant'Anna Hospital, Turin, Italy;4. Department of Preventive Medical Sciences - ‘Federico II’ University, Naples, Italy |