2 Division of Oncologic Gynecology, Department of Medical and Surgical Sciences (DIMEC), University of Bologna, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy.
3 Department Of Obstetrics and Gynecology, University of Bari, Policlinico of Bari, Italy.
4 Department of Obstetrics and Gynecology, University of Naples, Federico2°, Italy.