1. Department of Obstetrics and Gynecology; University Hospital Ostrava; Ostrava Czech Republic
2. Faculty of Surgical Studies; University of Ostrava; Ostrava Czech Republic
3. Department of Obstetrics and Gynecology; University Hospital Olomouc; Olomouc Czech Republic
4. Department of Informatics and Computers; University of Ostrava; Ostrava Czech Republic
5. Department of Neonatology; University Hospital Ostrava; Ostrava Czech Republic