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Hsa_circ_0002577 was increased in EC. (a) Relative expression of hsa_circ_0002577 in EC tissues was detected by qRT-PCR. (b) Relative expression of hsa_circ_0002577 was increased in EC patients with tumor stage III-IV. (c) relative expression of hsa_circ_0002577 was upregulated in EC patients with lymph node metastases. (d) Kaplan-Meier survival curves showed that high hsa_circ_000257 expression was associated with low overall survival of EC patients. *P < 0.05.
