[1] Palacky Univ Olomouc, Fac Med & Dent, Dept Obstet & Gynecol, IP Pavlova 185-6, Olomouc 77900, Czech Republic
[2] Univ Hosp Olomouc, IP Pavlova 185-6, Olomouc 77900, Czech Republic
[3] IVF Clin Reprogenesis, Hlinky 144, Brno 60300, Czech Republic
[4] St Annes Univ Hosp Brno, Int Clin Res Ctr, Brno 60200, Czech Republic
[5] IVF Clin, Horni Lan 6, Olomouc 77900, Czech Republic
[6] Palacky Univ Olomouc, Fac Sci, Dept Math Anal & Applicat Math, 17 Listopadu 12, Olomouc 77146, Czech Republic
[7] Reprofit Brno, Clin Reprod Med, Hlinky 122, Brno 60200, Czech Republic