1. Department of Maternal and Child Health and Urological Sciences, Sapienza University of Rome, Rome, Italy.
2. Department of Oncology, Regina Elena National Cancer Institute, Rome, Italy.
3. Division of Gynecologic Oncology, Department of Women and Child Health, Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica, Rome, Italy.
4. Biostatistic Unit, Regina Elena National Cancer Institute, Rome, Italy.
5. Department of Urology and Gynecology, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy.