Department of Urology, Kartal Dr. Lutfi Kirdar Traning and Research Hospital, Estambul, Turkey. Department of Urology, Kırklareli University, Faculty of Medicine, Krıklareli, Turkey. Electronic address: alkancubuk@hotmail.com. Department of Urology, Van Yüzüncü Yıl University, Faculty of Medicine, Van, Turkey. Department of Urology, Fatih Sultan Mehmet Traning and Research Hospital, Estambul, Turkey. Department of Urology, Biruni University Faculty of Medicine, Estambul, Turkey.