1. Department of Urology, Faculty of Medicine, Fırat Üniversity, Elazığ, Turkey
2. Ministry of Health, Bismil State Hospital, Clinic of Urology, Diyarbakır, Turkey
3. Department of Urology, Faculty of Medicine, Yüzüncü Yıl Üniversity, Van, Turkey
4. Department of Urology, Faculty of Medicine, Selcuk Üniversity, Konya, Turkey