Warli S.M., Department of Urology, Universitas Sumatera Utara Hospital, Universitas Sumatera Utara, Medan, Indonesia, Division of Urology, Department of Surgery, Faculty of Medicine, Universitas Sumatera Utara-Haji Adam Malik General Hospital, Medan, Indonesia; Ikram M.F., Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia; Sarumpaet R.G., Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia; Tala Z.Z., Department of Nutrition, Faculty of Medicine, Universitas Sumatera Utara, Indonesia; Putrantyo I.I., Department of Urology, Faculty of Medicine, Universitas Indonesia - Haji Adam Malik General Hospital, Medan, Indonesia