[1] Univ Pavia, Dept Clin Surg Diagnost & Paediat Sci, I-27100 Pavia, Italy
[2] IRCCS Fdn Policlin San Matteo, Dept Obstet & Gynecol, I-27100 Pavia, Italy
[3] Cannizzaro Hosp, Maternal & Child Dept, Obstet & Gynecol, I-95122 Catania, Italy
[4] Santa Chiara Hosp, Dept Obstet & Gynecol, I-38122 Trento, Italy
[5] PO Tigullio Hosp ASL4, Dept Obstet & Gynecol Oncol, I-16043 Genoa, Italy
[6] Univ Campania Luigi Vanvitelli, Dept Woman Child & Gen & Specialized Surg, Obstet & Gynecol Unit, I-80138 Naples, Italy
[7] Fdn Policlin Univ A Gemelli IRCCS, Dept Women Children & Publ Hlth Sci, Gynecol Oncol Unit, I-00168 Rome, Italy
[8] Univ Cattolica Sacro Cuore, Dipartimento Sci Vita & Sanita Pubbl, I-00168 Rome, Italy
[9] Endoscop Malzoni Ctr Adv Endoscop Gynecol Surg, I-83100 Avellino, Italy
[10] Principe Asturias Univ Hosp, Gynecol Dept, Madrid 28805, Spain
[11] La Paz Univ Hosp, Gynecol Oncol Unit, Madrid 28046, Spain