[1] Univ Copenhagen, Fac Hlth Sci, Juliane Marie Ctr Women Children & Reprod, Reprod Biol Lab, DK-2100 Copenhagen, Denmark
[2] Univ Aarhus, Inst Anat, Reprod Lab, Aarhus, Denmark
[3] Aarhus Univ Hosp, Dept Obstet & Gynaecol, DK-8000 Aarhus, Denmark
[4] Crete Fertil Ctr, Iraklion 71202, Crete, Greece
[5] Univ Copenhagen, Univ Copenhagen Hosp, Juliane Marie Ctr Women Children & Reprod, Rigshosp,Lab Reprod Biol,Sect 5712, DK-2100 Copenhagen, Denmark