1. Department of Obstetrics and Gynecology, Ankara Yildirim Beyazit University Faculty of Medicine, Ankara Bilkent City Hospital Assisted Reproductive Technology Center, Ankara, Turkey
2. Department of Histology and Embryology, Ankara Bilkent City Hospital, Assisted Reproductive Technology Center, Ankara, Turkey
3. Department of Pathobiology, Tabriz Medical Sciences, Islamic Azad University, Tabriz, Iran