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. 2002 Feb 1;86(3):376–381. doi: 10.1038/sj.bjc.6600077

Figure 3.

Figure 3

Immunohistochemical staining with FHIT antibody. (A) Normal epithelium (positive control) ×100, (B) a positive CIN2 lesion×350, (C) a positive CIN3 lesion showing microinvasion×350 and (D) a negative squamous cell carcinoma×350. Stromal cells present in all sections were used as an internal negative control.