1. Clinic of Obstetrics and Gynecology, University Hospital Center Osijek, J. Huttlera 4, 31000 Osijek, Croatia
2. Department of Obstetrics and Gynecology, Faculty of Medicine, J.J. Strossmayer University, J. Huttlera 4, 31000 Osijek, Croatia
3. Department of Medical Biology and Genetics, Faculty of Medicine, J.J. Strossmayer University, J. Huttlera 4, 31000 Osijek, Croatia
4. Department of Medical Statistics and Informatics, Faculty of Medicine, J.J. Strossmayer University, J. Huttlera 4, 31000 Osijek, Croatia