1. From the Departments of Urology, Graduate School of Medical Sciences, Kyushu University (HK, KK, SN) and Harasanshin General Hospital (AY), Kyushu University Urological Oncology Group (HK, KK, AY, YO, SN), Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University (MT), Fukuoka and Department of Urology, Miyazaki Medical College, Miyazaki, Japan (YO)