1. Department of Obstetrics and Gynecology, Trabzon Health Practice and Research Center, University of Health Sciences, Trabzon, Turkey.
2. Departments of Obstetrics and Gynecology, School of Medicine, Çanakkale On sekiz Mart Üniversitesi, Çanakkale, Turkey.
3. Departments of Obstetrics and Gynecology, School of Medicine, Karadeniz Technical University, Trabzon, Turkey.