1. Department of Urology, Faculty of Medicine, Prof. Dr. I.G.N.G Ngoerah General Hospital, Universitas Udayana, Denpasar, Indonesia
2. Department of Urology, Faculty of Medicine, Soetomo General-Academic Hospital, Universitas Airlangga, Surabaya, Indonesia
3. Department of Urology, Faculty of Medicine, Saiful Anwar General Hospital, Universitas Brawijaya, Malang, Indonesia