1. Obstetrics and Gynecology Unit, Department of Human Pathology of Adult and Childhood “G. Barresi”, University of Messina, 98124 Messina, Italy
2. Obstetrics and Gynecology Unit, Department of Woman and Child, Azienda Sanitaria Provinciale di Catania, 95124 Catania, Italy
3. Department of Biomedical, Dental, Morphological and Functional Imaging Science, University of Messina, 98122 Messina, Italy
4. Department of Medical Area (DAME), Clinic of Obstretics and Gynecology “Santa Maria della Misericordia”, University Hospital Azienda Sanitaria Universitaria Friuli Centrale, University of Udine, 33100 Udine, Italy
5. Obstetrics and Gynecology Unit, Department of Woman, Child and General and Specialized Surgery, University of Campania Luigi Vanvitelli, 80138 Napoli, Italy
6. Department of Medicine and Surgery, University Hospital of Parma, 43125 Parma, Italy
7. Department of Obstetrics and Gynaecology, Azienda di Rilievo Nazionale e di Alta Specializzazione (ARNAS) Garibaldi Nesima, 95124 Catania, Italy
8. Obstetrics and Gynecology Unit, Department of Woman and Child, Ospedale Buccheri La Ferla Fatebenefratelli, 90123 Palermo, Italy
9. Department of General Surgery and Medical Surgical Specialties, Gynecological Clinic, University of Catania, 95123 Catania, Italy