Department of Nephro-urology, Graduate School of Medical Sciences, Nagoya City University, Kawasumi 1, Mizuho-cho, Mizuho-ku 467-8601, Nagoya, Japan. Department of Nephro-urology, Graduate School of Medical Sciences, Nagoya City University, Kawasumi 1, Mizuho-cho, Mizuho-ku 467-8601, Nagoya, Japan. naiki@med.nagoya-cu.ac.jp. Department of Pharmacy, Nagoya City University Hospital, Nagoya, Japan. Department of Experimental Pathology and Tumor Biology, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan. Department of Urology, Toyota Kosei Hospital, Toyota City, Japan. Department of Urology, Konan Hospital, Konan City, Japan. Department of Urology, Kainan Hospital, Yatomi City, Japan.