1 Unit of Obstetrics and Gynecology, Department of Medicine and Surgery, University of Perugia, 06123 Perugia, Italy.
2 Unit of Gynecologic Oncology, ARNAS "Civico-Di Cristina-Benfratelli", Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (PROMISE), University of Palermo, 90127 Palermo, Italy.
3 Unit of Obstetrics and Gynecology-Department of Surgery, Dentistry, Pediatrics, and Gynecology, AOUI Verona-University of Verona Piazzale A. Stefani 1, 37126 Verona, Italy.