論文（英文）
Staging of hepatocellular carcinoma: assessment of the Japanese TNM and AJCC/UICC TNM systems in a cohort of 13,772 patients in Japan.
Minagawa M, Ikai I, Matsuyama Y, Yamaoka Y, and Makuuchi M. Staging of hepatocellular carcinoma: Assessment of the Japanese TNM and AJCC/UICC TNM systems in a cohort of 13,772 patients in Japan. Annals of Surgery 2007; 245(6):909-922.