Viral load levels, toxicity, liver enzymes, and γ-interferon (IFN-γ) levels were examined before and three months after treatment. Viral load was examined by quantitative polymerase chain reaction (PCR) test using COBAS® TaqMan® Analyzer (Roche Corporation). IFN-γ, AFP, ALT, and AST levels were analyzed using specific Elisa Kits, which were performed by Spectrum Chemical Manufacturing Corporation, Gardena, CA, USA, and toxicity was assessed by a questionnaire, physician observation, and laboratory results.