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Protein expression in carcinoma cases. (A) a, DNA methyltransferase 1 (DNMT1)-positive; b, E-cadherin-positive and c, hMLH1-negative. (B) a, DNMT1-positive; b, E-cadherin-negative and c, hMLH1-positive. (C) a, DNMT1-negative; b, E-cadherin-positive and c, hMLH1-positive.
