1. Department of Perinatology, Clinics of Gynecology & Obstetrics, Haseki Training & Research Hospital, Istanbul, Turkey
2. Department of Perinatology, Clinics of Gynecology & Obstetrics, Haseki Training & Research Hospital, Istanbul, Turkey, cemdane@ yahoo.com.
3. Department of Pathology, Cerrahpasa Medical Faculty, University of Istanbul, Istanbul, Turkey