[1] Univ Modena & Reggio Emilia, Inst Obstet & Gynecol, Mother Infant Dept, I-41100 Modena, Italy
[2] Univ Modena & Reggio Emilia, Dept Oncol Hematol & Resp Dis, I-41100 Modena, Italy
[3] Univ Glasgow, Fac Med, Glasgow, Lanark, Scotland
[4] Pordenone Hosp, Maternal Paediat Dept, Pathophysiol Human Reprod & Sperm Bank Unit, Pordenone, Italy