1. Department of Obstetrics and Gynecology, Derince Education and Research Hospital, Kocaeli, Turkey
2. Department of Obstetrics and Gynecology, Acibadem University, Altunizade Hospital, İstanbul, Turkey
3. Department of Anesthesiology and Reanimation, Derince Education and Research Hospital, Kocaeli, Turkey
4. Department of Anatomy, Faculty of Medicine, Kocaeli University, Kocaeli, Turkey