1. Gynecological and Obstetrics Unit, Department of General Surgery and Medical Surgical Specialties, University of Catania, Via Santa Sofia 78, 95123 Catania, Italy
2. Radiodiagnostic and Radiotherapy Unit, University Hospital “Policlinico-San Marco”, 95123 Catania, Italy
3. Department of Woman and Child Health and Public Health, Catholic University of the Sacred Heart, 00168 Rome, Italy
4. Department of Obstetrics and Gynaecology, Azienda di Rilievo Nazionale e di Alta Specializzazione (ARNAS) Garibaldi Nesima, 95124 Catania, Italy