1. Obstetrics and Gynecology, Eskisehir Osmangazi Universitesi, Eskisehir, Turkey;
2. Obstetrics and Gynecology, Giresun Universitesi, Giresun, Turkey;
3. Obstetrics and Gynecology, Denizli Ozel Saglik Hastanesi, Denizli, Turkey;
4. Obtetrics and Gynecology, Eskisehir Osmangazi Universitesi, Eskisehir, Turkey