1. Departments of Urology (K.Ni., K.Na., T.K., M.O.), Keio University Hospital, Tokyo 160-8582, Japan
2. Department of Urology (K.Ni.), Federation of National Public Service Personnel Mutual Aid Associations, Tachikawa Hospital, Tokyo 190-8531, Japan
3. Biochemistry and Integrative Medical Biology (D.L., F.M., M.S., K.M.), Keio University Hospital, Tokyo 160-8582, Japan
4. Division of Diagnostic Pathology (S.M.), Keio University Hospital, Tokyo 160-8582, Japan
5. Internal Medicine (H.S., H.I.), School of Medicine, Keio University, Keio University Hospital, Tokyo 160-8582, Japan
6. Laboratory of Molecular Brain Science (T.Y.), Graduate School of Integrated Arts and Sciences, Hiroshima University, Higashi-Hiroshima 739-8521, Japan
7. Department of Chemistry (T.O.), Faculty of Sciences, Kyushu University, Fukuoka 812-8581, Japan