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Immunohistochemical staining of XPA in locally advanced cervical cancer. (A) Negative control staining performed without primary antibody. (B and C) Representative sections stained with a primary antibody against XPA showing scores of 6 (B) and 12 (C). Sections were counterstained with hematoxylin. Magnification, ×400. XPA, xeroderma pigmentosum complementation group A.
