1. Zekai Tahir Burak Kadin Sagligi EAH, Ankara, Turkey;
2. Department of Biochemistry, Ufuk Universitesi Doktor Ridvan Ege Egitim Arastirma Hastanesi, Ankara, Turkey;
3. Zekai Tahir Burak Kadin Sagligi Egitim ve Arastirma Hastanesi, Ankara, Turkey;
4. Department of Obstetrics and Gynecology, Ufuk Üniversitesi, Ankara, Turkey