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Immunohistochemical KLF4 staining in normal skin tissue (A, B) and in primary biopsy tissues of human breast cancer (C–F).
Notes: Positive control (tissue known to have strong KLF4 expression) at (A) 100× and (B) 400× magnification. High KLF4 expression at (C) 100× and (D) 400× magnification. Low KLF4 expression at (E) 100× and (F) 400× magnification.
