1. Department of Obstetrics and Gynecology, Bezmialem Vakıf University School of Medicine, İstanbul, Turkey
2. Department of Obstetrics and Gynecology, Saglik Bilimleri University, İstanbul Kanuni Sultan Süleyman Training and Research Hospital, İstanbul, Turkey
3. Department of Obstetrics and Gynecology, Erbaa State Hospital, Tokat, Turkey