Correspondence
Kimitsugu Usui, Department of Urology, Shizuoka Cancer Center, 1007 Shimonagakubo, Nagaizumi-cho, Suntou-gun, Shizuoka 411-8777, Japan.
Email: usuik@kcch.jp. Tel: +81-55-989-5222. Fax: +81-55-989-5783