1. Department of Obstetrics and Gynecology; University of Insubria; Varese Italy
2. Department of Gynecologic Oncology; IRCCS National Cancer Institute; Milan Italy
3. Eoc-Ente Ospedaliero Cantonale; Obv-Ospedale Beata Vergine; Mendrisio Svizzera
4. Department of Obstetrics and Gynaecology; Vita-Salute San Raffaele University and IRRCS San Raffaele Hospital; Milan Italy