FIGURE 2.

The screening work for candidate circulating circRNA in training set. A, Venny analysis of differently expressed circRNA in HCC, CH, NC and Post‐O groups. B, The expression of circ_0015138 or circ_0125297 was confirmed by RT‐PCR in groups. C, The expression of circ_0009582, circ_0037120 and circ_0140117 was confirmed by RT‐PCR in groups. Data were presented as plot of the mean with SD with log‐transformed. D: The ROC curve for three‐potential fingerprint in training set. *indicated P < .05, **indicated P < .01, n.s. indicated no significance. HCC, hepatocellular carcinoma; CH, chronic hepatitis; Control, normal control; Post‐oper, the paired HCC patients after operation