Clinical significance of hepatic resection in hepatocellular carcinoma: analysis by disease-free survival curves. - Sakon,M.; Umeshita,K.; Nagano,H.; Eguchi,H.; Kishimoto,S.; Miyamoto,A.; Ohshima,S.; Dono,K.; Nakamori,S.; Gotoh,M.; Monden,M. (Arch.Surg., 2000)