1. Department of Obstetrics and Gynecology, Istanbul Kanuni Sultan Suleyman Research and Training Hospital, Health Sciences University, İstanbul, Turkey
2. Department of Obstetrics and Gynecology, Esenler Maternity and Children's Hospital, Istanbul, Turkey
3. Department of Obstetrics and Gynecology, Acıbadem University Atakent Hospital, Istanbul, Turkey
4. Department of Obstetrics and Gynecology, Health Sciences University, Istanbul Sisli Hamidiye Etfal Training and Research Hospital, İstanbul, Turkey
5. Department of Obstetrics and Gynecology, Çubuk Halil Şıvgın Hospital, Ankara, Turkey