1. Department of Biochemistry, Van YuzuncuYil University, Van, Turkey;
2. Department of Urology, Van YuzuncuYil University, School of Medicine, Van, Turkey;
3. Department of Urology, Bağcılar Region Training and Research Hospital, İstanbul, Turkey;
4. VanYuzuncuYil University, Vocational School of High of Health Services, Van, Turkey