Affiliation: | 1. Department of Obstetrics and Gynecology, University of Rome Tor Vergata, Rome, Italy;2. Department of Obstetrics and Gynecology, G. B. Grassi Hospital, Rome, Italy;3. Department of Obstetrics and Gynecology, Fondazione Ca’ Granda, Maggiore Policlinico Hospital, Milan, Italy;4. Department of Obstetrics and Gynecology, University of Parma, Parma, Italy;5. Department of Obstetrics and Gynecology, University of Napoli Federico II, Naples, Italy |