[1] Univ Naples Federico II, Dept Neurosci Reprod Sci & Odontostomatol, I-80131 Naples, Italy
[2] CNR, Ist Endocrinol & Oncol Sperimental, I-80131 Naples, Italy
[3] Univ Modena & Reggio Emilia, Dept Biomed Metab & Neural Sci, Unit Endocrinol, I-41126 Modena, Italy
[4] Azienda Osped Univ Modena, I-41126 Modena, Italy
[5] Univ Estadual Campinas, UNICAMP, Androfert Androl & Human Reprod Clin, BR-13075460 Campinas, SP, Brazil
[6] Univ Estadual Campinas, UNICAMP, Dept Surg, Div Urol, BR-13075460 Campinas, SP, Brazil
[7] Univ Hosp Copenhagen, Fac Hlth & Med Sci, Lab Reprod Biol, DK-2100 Copenhagen, Denmark
[8] Skive Reg Hosp, Fertil Clin, Skive, Denmark
[9] Aarhus Univ, Fac Hlth, DK-7800 Aarhus, Denmark
[10] Univ Campania Luigi Vanvitelli, Med Stat Unit, I-80138 Naples, Italy