1. Department of Obstetrics and Gynecology, Division of Perinatology, Ministry of Health, Ankara City Hospital, Ankara, Turkey
2. Department of Radiology, Ministry of Health, Ankara City Hospital, Ankara, Turkey
3. Department of Obstetrics and Gynecology, Division of Perinatology, Etlik Zübeyde Hanım Maternity & Women’s Health Teaching and Research Hospital, Ankara, Turkey
4. Department of Obstetrics and Gynecology, Ministry of Health, Ankara City Hospital, Ankara, Turkey