Surgical Management in synchronous bilateral renal cell carcinoma - Fujioka,T.; Hasegawa,M.; Satoh,F.; Ishikura,I.; Matsuzaka,J.; Yoh,T.; Kamusaka,K.; Ugiie,T.; Nomura,K.; Okamoto,T. (Nippon-Hinyokika-Gakkai-Zasshi, 1990)