Comparison Study of Transarterial Chemoembolization and Percutaneous Ethanol Injection for Multiple, Small HCCs

Inclusion Criteria: * The evidences of HBV(+) \&/or HCV(+) infection or liver cirrhosis * Two to three tumor nodules with Child-Pugh classification A or single to three tumor nodules with Child-Pugh classification B * The maximal, longest diameter of tumor mass measured by CT finding should be less than 2 cm. * 1\) Only for newly detected HCCs which were not treated before or 2) If treated before, it should be noted that there is no evidence of recurrence within the latest 6 months and, and also it should be remotely recurred more than 2cm apart from primary lesion. * It should be compatible with the typical findings of HCCs radiologically(MD CT or dynamic MRI) Exclusion Criteria: * In case of hepatic vein or portal vein invasion radiologically(CT or MRI)