1. Department of Histology and Embrology; Biruni University; Istanbul Turkey
2. Department of Statistics; Yeni Yuzyil University Medical Faculty; Istanbul Turkey
3. Medical Biology and Genetics; Biruni University; Istanbul Turkey
4. Department of Gynaecology and Obstetrics; Sisli Hamidiye Etfal Egitim ve Arastirma Hastanesi; Istanbul Turkey
5. University Clinic for Obstetrics and Gynecology; Oldenburg University; Oldenburg Germany