1. Department of Urology, Kızıltepe State Hospital, Kızıltepe, Mardin, Turkey.
2. Department of Urology, Siverek State Hospital, Siverek, Şanlıurfa, Turkey.
3. Department of Pediatric Urology, Cerrahpasa Faculty of Medicine, İstanbul University, Fatih, İstanbul, Turkey.
4. Department of Urology, Haseki Training and Research Hospital, Fatih, İstanbul, Turkey.