論文（英文）
Report of the 17th Nationwide Follow-up Survey of Primary Liver Cancer in Japan.
Ikai I, Arii S, Okazaki M, Okita K, Omata M, Kojiro M, Takayasu K, Nakanuma Y, Makuuchi M, Matsuyama Y, Monden M, and Kudo M. Report of the 17th nationwide follow-up survey of primary liver cancer in Japan. Hepatology Research 2007; 37(9):676-691.