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Figure 4 A high‐grade cervical intraepithelial neoplasia 3 lesion, with markedly reduced nm23‐H1 expression. Positive staining is confined to the uppermost layers of the epithelium, whereas the lower two thirds remains entirely nm23‐H1 negative, except for some single scattered positive cells (immunohistochemistry for nm23‐H1, original magnification ×100).
