1. Department of Obstetrics and Gynecology, Duzce University Hospital, Duzce, Turkey.
2. Department of Obstetrics and Gynecology, Health Sciences University, Sisli Hamidiye Etfal Research and Training Hospital, Istanbul, Turkey.
3. Department of Obstetrics and Gynecology, Istinye University School of Medicine, Istanbul, Turkey.
4. Department of Obstetrics and Gynecology, Bahçeşehir University School of Medicine, Istanbul, Turkey.