Nabil R.A., Department of Urology, Faculty of Medicine, Universitas Indonesia — Haji Adam Malik General Hospital, Medan, Indonesia; Warli S.M., Division of Urology, Department of Surgery, Faculty of Medicine, Universitas Sumatera Utara — Haji Adam Malik General Hospital, Medan, Indonesia, Department of Urology, Faculty of Medicine, Universitas Sumatera Utara Hospital — Universitas Sumatera Utara, Medan, Indonesia; Siregar G.P., Division of Urology, Department of Surgery, Faculty of Medicine, Universitas Sumatera Utara — Haji Adam Malik General Hospital, Medan, Indonesia; Prapiska F.F., Division of Urology, Department of Surgery, Faculty of Medicine, Universitas Sumatera Utara — Haji Adam Malik General Hospital, Medan, Indonesia