1. Clinic of Obstetrics and Gynecology University Hospital Center Osijek Osijek Croatia
2. Department of Obstetrics and Gynecology Faculty of Medicine, J.J. Strossmayer University Osijek Croatia
3. Department of Medical Statistics and Informatics Faculty of Medicine, J.J. Strossmayer University Osijek Croatia
4. Department of Medical Biology and Genetics Faculty of Medicine, J.J. Strossmayer University Osijek Croatia