[1] Univ Alma Mater Studiorum Bologna, St Orsola Malpighi Hosp, Div Endocrinol, Bologna, Italy
[2] Univ Gothenburg, Inst Neurosci & Physiol, Dept Physiol, Sahlgrenska Acad, Gothenburg, Sweden
[3] Heilongjiang Univ Chinese Med, Affiliated Hosp 1, Dept Obstet & Gynecol, Harbin, Peoples R China
[4] Hacettepe Univ, Sch Med, Endocrinol & Metab Unit, Dept Internal Med, Ankara, Turkey
[5] Univ Calif Davis, Div Reprod Endocrinol & Infertil, Dept Obstet & Gynecol, Davis, CA 95616 USA
[6] Univ Rochester, Med Ctr, Dept Obstet & Gynecol, Rochester, NY 14642 USA
[7] Univ London, Div Basic Med, London, England
[8] Barzilai Govt Hosp, Ashqelon, Israel
[9] Homerton Univ Hosp, Homerton Fertil Ctr, London, England
[10] Univ Adelaide, Sch Med, Adelaide, SA, Australia
[11] Univ Adelaide, Sch Paediat & Reprod Hlth, Adelaide, SA, Australia
[12] Hammersmith Hosp, Inst Reprod & Dev Biol, Imperial Coll Sch Med, London, England
[13] Oulu Univ Hosp, Dept Obstet & Gynecol, Oulu Fin, Finland
[14] Leeds Gen Infirm, Dept Reprod Med & Surg, Leeds, W Yorkshire, England
[15] Univ Wisconsin, Dept Ob Gyn, Madison, WI USA
[16] Univ Wisconsin, Wisconsin Natl Primate Res Ctr, Madison, WI USA
[17] Univ Athens, Sch Med, Dept Med 3, Sotirira Hosp, GR-11527 Athens, Greece
[18] Penn State Coll Med, Dept Ob Gyn, Hershey, PA USA