All tests of significance were two-tailed, and P<0.05 was considered significant. The cumulative incidence of intra- and extra-hepatic recurrence was calculated by the Kaplan-Meier method, and differences among groups were assessed using the log-rank test. A paired t-test was used to analyze differences in mRNAs in tumors and corresponding non-tumorous tissue. Data processing and analysis were performed using SPSS software version 17.0 or 19.0 (SPSS Inc., Chicago, IL, USA).
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