SPSS 20.0 was used for data analysis. Data were expressed as mean ± standard deviation. The chi-square test evaluated the correlation between hsa_circ_0023409 and clinicopathological variables. Pearson’s correlation coefficient analysis was used to confirm the correlation. Comparisons between groups were assessed by student’s t-test and one-way analysis of variance. P < 0.05 was considered statistically significant.
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