[1] LF UP, Porodnicko Gynekol Klin, IP Pavlova 6, Olomouc 77520, Czech Republic
[2] FN, IP Pavlova 6, Olomouc 77520, Czech Republic
[3] LF UP, Radiol Klin, Olomouc, Czech Republic
[4] Ustav Zdravotnickych FHS UTB, Zlin, Czech Republic
[5] Nemocnice Prerov, Gynekol Porodnicke Oddeleni, Prerov, Czech Republic