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A. ORs with corresponding 95% CIs of Interleukin-8 expression with UICC stage. B. ORs with corresponding 95% CIs of Interleukin-8 expression with lymphatic metastasis. C. ORs with corresponding 95% CIs of Interleukin-8 expression with liver metastasis. OR>1 implied significant correlations between IL-8 and advanced stage, lymphatic metastasis, and liver metastasis.
