1. ASL NA3 SUD, Naples, Italy.
2. Department of Gynecology and Obstetrics, San Leonardo Hospital, Castellammare di Stabia (NA), Italy.
3. ASL NA2 NORD, Naples, Italy.
4. Department of Gynecology and Obstetrics, Sant'Anna and San Sebastiano Hospital, University of Campania “Luigi Vanvitelli,” Caserta, Italy.