[Statistics on operations at Hara Genitourinary Hospital (1971-1991)]. - Hara S; Omae H; Shinozaki M; Tanaka H; Takechi Y; Eto H; Hara I; Hasunuma Y; Shimogaki H; Chokyu H (Hinyokika kiyo. Acta urologica Japonica, 1992)