1. Department of Surgical Sciences, Division of Gynecology and Obstetrics, University of Cagliari, Italy;
2. Gynecologic Oncology Unit, Department of Obstetrics and Gynecology, ASST-Monza, San Gerardo Hospital, Milano, Italy;
3. Gynecologic Oncology Unit, La Paz University Hospital, Madrid, Spain;
4. Division of Pathology, Department of Surgical Sciences, Universita degli Studi di Cagliari Facolta di Medicina e Chirurgia Ringgold standard institution, Monserrato, Italy