1. Obstetrics and Gynecology, University of Health Sciences Gulhane Medical Faculty, Ankara, Turkey
2. Clinic of Obstetrics and Gynecology, University of Health Sciences, Ankara City Hospital, Ankara, Turkey
3. Faculty of Science, Department of Statistics, Gazi University, Ankara, Turkey
4. Clinic of Biochemistry, University of Health Sciences, Etlik Zübeyde Hanım Women’s Health Training and Research Hospital, Ankara, Turkey
5. Clinic of Obstetrics and Gynecology, University of Health Sciences, Etlik Zübeyde Hanım Women’s Health Training and Research Hospital, Ankara, Turkey