1. Department of Urology, Medical Faculty, Gazi University, 06510 Ankara, Turkey
2. Department of Anesthesiology and Reanimation, Medical Faculty, Gazi University, 06510 Ankara, Turkey
3. Department of Histology and Embryology, Medical Faculty, Kutahya Health Sciences University, 43050 Kutahya, Turkey
4. Department of Medical Biochemistry, Medical Faculty, Gazi University, 06510 Ankara, Turkey