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Survival analysis according to presence of circulating tumor cell (CTC). Kaplan-Meier analyses of survival of patients with liver cancer (A-D) and patients with hepatocellular carcinoma (HCC) (E-H). p-values were determined using log-rank tests. The presence of CTCs and CTCs positive for epithelial cell adhesion molecule (EpCAM) and α-fetoprotein (AFP) resulted in poorer prognosis, but the differences were not statistically significant. EMA, epithelial membrane antigen.
