1) Shiina S, Tagawa K, Unuma T, et al:Percutaneous ethanol injection therapy of hepatocellular carcinoma;analysis of 77 patients. AJR Am J Roentgenol 155:1221-1226, 1990
2) Livraghi T, Giorgio A, Marin G, et al:Hepatocellular carcinoma and cirrhosis in 746 patients;long-term results of percutaneous ethanol injection. Radiology 197:101-108, 1995
3) Ryu M, Shimamura Y, Kinoshita T, et al:Therapeutic results of resection, transcatheter arterial embolization and percutaneous transhepatic ethanol injection in 3225 patients with hepatocellular carcinoma;a retrospective multicenter study. Jpn J Clin Oncol 27:251-257, 1997
4) Tateishi R, Shiina S, Teratani T, et al:Percutaneous radiofrequency ablation for hepatocellular carcinoma. An analysis of 1000 cases. Cancer 103:1201-1209, 2005
5) Shiina S, Teratani T, Obi S, et al:A randomized controlled trial of radiofrequency ablation with ethanol injection for small hepatocellular carcinoma. Gastroenterology 129:122-130, 2005
6) Kudo M, Chung H, Osaki Y:Prognostic staging system for hepatocellular carcinoma (CLIP score);its value and limitations, and a proposal for a new staging system, the Japan Integrated Staging Score (JIS score). J Gastroenterol 38:207-215, 2003
7) Koike Y, Shiratori Y, Sato S, et al:Des-gamma-carboxy prothrombin as a useful predisposing factor for the development of portal venous invasion in patients with hepatocellular carcinoma;a prospective analysis of 227 patients. Cancer 91:561-569, 2001