1. Division of Perinatology, Department of Obstetrics and Gynecology, Turkish Ministry of Health Ankara City Hospital, Cankaya, Turkey.
2. Department of Pathophysiology, Internal Medicine, Ankara University Medical School, Cankaya, Turkey.
3. Division of Perinatology, Department of Obstetrics and Gynecology, University of Health Sciences, Turkish Ministry of Health Ankara City Hospital, Ankara, Turkey.