1. Department of Surgery Faculty of Medicine University of Malaya Kuala Lumpur Malaysia
2. Department of Urology School of Medicine International University of Health and Welfare Chiba Japan
3. Department of Clinical Oncology University of Malaya Medical Centre Faculty of Medicine University of Malaya Kuala Lumpur Malaysia
4. Department of Urology Selayang HospitalMinistry of Health Malaysia Selangor Malaysia
5. Strategic Investigation on Comprehensive Cancer Network Interfaculty Initiative in Information Studies/Graduate School of Interdisciplinary Information University of Tokyo Tokyo Japan