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Frequencies of methylation at CDH1, DAPK, hMLH1, COX2 and CDKN2A genes in gastric carcinomas. A: Frequencies of methylation at CDH1, DAPK, hMLH1, COX2 and CDKN2A distributed according to tumor stages in diffuse adenocarcinoma; B: Frequencies of methylation at CDH1, DAPK, hMLH1, COX2 and CDKN2A distributed according to tumor stages in intestinal adenocarcinoma; C: Frequencies of methylation at CDH1, DAPK, hMLH1, COX2 and CDKN2A distributed with regard to age groups.
