1. Department of Urology, Kyushu University, Fukuoka City, Japan.
2. Department of Advanced Medical Initiatives, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan.
3. Department Compute Science, Graduate School of Natural Science and Technology, Okayama University, Okayama, Japan.
4. Faculty of Information Science and Electrical Engineering, Department of Advanced Information Technology, Kyushu University, Fukuoka, Japan.
5. Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.