[1] Univ Vita Salute San Raffaele, Obstet & Gynecol Unit, I-20132 Milan, Italy
[2] IRCCS San Raffaele Hosp, I-20132 Milan, Italy
[3] IRCCS Policlin S Matteo Fdn, Res Ctr Reprod Med Gynecol Endocrinol & Menopause, Pavia, Italy
[4] Univ Pavia, Dept Clin Surg Diagnost & Pediat Sci, I-27100 Pavia, Italy
[5] Univ Insubria, Varese, Italy
[6] IRCCS San Martino Hosp, Dept Obstet & Gynecol, Genoa, Italy
[7] Univ Genoa, Natl Inst Canc Res, Genoa, Italy