1. Department of Woman, Child and General and Specialized Surgery, University of Campania “Luigi Vanvitelli”, Naples, Italy
2. Department of Experimental Medicine, University of Study of Campania “Luigi Vanvitelli”, Naples, Italy
3. Obstetrics and Gynecology Unit, Department of General Surgery and Medical Surgical Specialties, University of Catania, Catania, Italy
4. Obstetrics and Gynecology Unit, "Santa Maria delle Grazie" Hospital, Pozzuoli, Naples, Italy