1. Zeynep Kamil Maternity and Children’s Training and Research Hospital, Istanbul, Turkey;
2. Zeynep Kamil Teaching and Research Hospital, Istanbul, Turkey;
3. Etlik Womens Health Teaching and Research Hospital, Ankara, Turkey;
4. Department of Obstetrics and Gynecology, Zeynep Kamil Maternity and Children’s Diseases Training and Research Hospital, Istanbul, Turkey;
5. Zeynep Kamil Kadin ve Cocuk Hastaliklari Egitim ve Arastirma Hastanesi, Istanbul, Turkey;
6. Department of Obstetrics and Gynecology, Zeynep Kamil Maternity and Children’s Hospital, Istanbul, Turkey