1. Department of Obstetrics and Gynecology University of Health Sciences, Sancaktepe Training and Research Hospital Istanbul Turkey
2. Department of Obstetrics and Gynecology University of Health Sciences, Umraniye Training and Research Hospital Istanbul Turkey
3. Department of Obstetrics and Gynecology Marmara University Faculty of Medicine Istanbul Turkey
4. Department of Obstetrics and Gynecology University of Healh Sciences, Van Training and Research Hospital Istanbul Turkey