論文（英文）
Clinical implication of hypovascular hepatocellular carcinoma studied in 4,474 patients with solitary tumour equal or less than 3 cm.
Takayasu K, Arii S, Sakamoto M, Matsuyama Y, Kudo M, Ichida T, Nakashima O, Matsui O, Izumi N, Ku Y, Kokudo N, Makuuchi M for the Liver Cancer Study Group of Japan. Clinical implication of hypovascular hepatocellular carcinoma studied in 4,474 patients with solitary tumour equal or less than 3 cm. Liver International 2013; 33(5): 762-770.