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KLF2 protein was lower expressed in breast cancer than paracarcinoma tissues. (A, B) Immunohistochemistry was performed to evaluate the expression of KLF2 in paracancerous and breast cancer tissues. Relationship between the level of KLF2 expression and ER (C), PR (D), HER2 (E) and tumor size (F). *, p < 0.05; **, p < 0.01; ***, p < 0.001; ns, no significant.
