1. Department of Obstetrics and Gynaecology Halic University Istanbul Turkey
2. Department of Obstetrics and Gynaecology Yeni Yuzyil University Istanbul Turkey
3. Tepecik Training and Research Hospital, Department of Obstetrics and Gynaecology University of Health Sciences Izmir Turkey
4. Department of Obstetrics and Gynaecology Altınbas University Istanbul Turkey
5. Department of Obstetrics and Gynaecology Balıkesir University Balıkesir Turkey