1. Fetal Medicine and Genetics Center, Olomouc and Ostrava, Czech Republic
2. Department of Biomedical Sciences, Faculty of Medicine, University of Ostrava, Ostrava, Czech Republic
3. Department of Obstetrics and Gynecology, Regional Hospital, Zlin, Czech Republic
4. Department of Obstetrics and Gynaecology, Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel