1. Unit of Gynaecological Surgery Mater Dei Hospital Bari Italy
2. Department of Women and Children's Health Clinic of Gynaecology and Obstetrics University of Padua Padua Italy
3. Department of Experimental and Clinical Medicine University Magna Graecia of Catanzaro Catanzaro Italy
4. Department of Obstetrics and Gynecology, “Filippo Del Ponte” Hospital University of Insubria Varese Italy