1. Department of Obstetrics and Gynecology Yozgat State Hospital Ankara Turkey
2. Department of Obstetrics and Gynecology Ministry of Health Ankara City Hospital Ankara Turkey
3. Department of Obstetrics and Gynecology Etlik Zubeyde Hanim Women’s Health Training and Research Hospital Ankara Turkey
4. Faculty of Medicine Department of Biochemisty Gazi University Ankara Turkey