1. Departments of Endocrinology and Metabolism (T.K., T.U., S.I., H.H., T.T., M.N., A.S.), National Hospital Organization Kyoto Medical Center, Kyoto 612-8555, Japan
2. Clinical Research Institute (T.U., D.N., T.T., M.N., A.S.), National Hospital Organization Kyoto Medical Center, Kyoto 612-8555, Japan
3. Surgical Pathology (S.M.), National Hospital Organization Kyoto Medical Center, Kyoto 612-8555, Japan
4. Urology (H.O.), National Hospital Organization Kyoto Medical Center, Kyoto 612-8555, Japan
5. Department of Pathology (H.S.), Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan