1. Department of Obstetrics and Gynecology, Sami Ulus Medical and Research Hospital, Ankara, Turkey.
2. Division of Neonatology, Department of Pediatrics, GATA Medical Faculty, Ankara, Turkey.
3. Department of Pediatric Endocrinology, Faculty of Medicine, S. Demirel University, Isparta, Turkey.
4. Department of Obstetrics and Gynecology, Goztepe Medical and Research Hospital, Istanbul, Turkey.