1. Department of Obstetrics and Gynecology, Altınbaş University , İstanbul , Turkey
2. Department of Obstetrics and Gynecology, Guven Hospital , Ankara , Turkey
3. Department of Obstetrics and Gynecology, İzmir Metropolitan Municipality Esrefpasa Hospital , İzmir , Turkey
4. Department of Obstetrics and Gynecology, Tepecik Education and Research Hospital , İzmir , Turkey