Sihombing, A.T., Department of Urology, Faculty of Medicine, Universitas Padjadjaran, Bandung, Indonesia; Taher, A., Department of Urology, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia; Rodjani, A., Department of Urology, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia; Mochtar, C.A., Department of Urology, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia; Hakim, L., Department of Urology, Faculty of Medicine, Airlangga University, Surabaya, Indonesia; Daryanto, B., Department of Urology, Faculty of Medicine, Brawijaya University, Malang, Indonesia; Danarto, H.R., Department of Urology, Faculty of Medicine, Gadjah Mada University, Yogyakarta, Indonesia; Umbas, R., Department of Urology, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia