1. Department of Obstetrics and Gynecology, Hacettepe University School of Medicine, Ankara, Turkey

2. Department of Obstetrics and Gynecology, Çanakkale Onsekiz Mart University School of Medicine, Çanakkale, Turkey

3. Department of Histology and Embryology, Hacettepe University School of Medicine, Ankara, Turkey

4. Department of Obstetrics and Gynecology, Necmettin Erbakan University School of Medicine, Konya, Turkey