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Classification of Keap1 and pNrf2 immunoreactivity in human hepatocellular carcinoma (HCC) tissue. Representative immunohistochemical staining of (P1, P5) strong, (P2, P6) moderate, (P3, P7) weak, and (P4, P8) none Keap1 (A) and pNrf2 (B) immunoreactivity in human HCC tissue.
