1. Obstetrics and Gynecology Umberto I Hospital, Kore University of Enna, 94100 Enna, Italy
2. Obstetrics and Gynecology Giovanni Paolo II Hospital, 97100 Ragusa, Italy
3. Obstetrics and Gynecology Cannizzaro Hospital, 95126 Catania, Italy
4. Vascular Surgery and Organ Transplant Unit, Department of General Surgery and Medical-Surgical Specialties, University Hospital of Catania, 95124 Catania, Italy
5. Obstetrics and Gynecology Cannizzaro Hospital, Kore University of Enna, 95126 Catania, Italy