1. Laboratory Animals Breeding and Experimental Research Center, Gazi University, Ankara 06510 , Turkey.
2. Department of Obstetrics and Gyneacology, Faculty of Veterinary Medicine, Ankara University, Ankara 06560, Turkey.
3. Department of Medical Biology and Genetics, Faculty of Medicine, Gazi University, Ankara 06510 , Turkey.
4. Department of Histology and Embriology, Faculty of Medicine, Başkent University, Ankara 06790, Turkey.
5. Department of Anatomy, Faculty of Medicine, Gazi University, Ankara 06510, Turkey.
6. Department of Hystology and Embriology, Faculty of Medicine, Gazi University, Ankara 06510, Turkey.