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Expression of PTEN. A: Strongly positive expression in bening gastric glandular epithelium cells (Immunohistochemical staining, S-P × 400). B: Positive expression in moderately differentiated cancer cells (Immunohistochemical staining, S-P × 100). C: Weakly positive expression in poorly differentiated cancer cells. (Immunohistochemical staining, S-P × 400).
