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Frequency of adenomatous polyposis coli (APC) (a) and epithelial cadherin (E‐cadherin) (b) promoter hypermethylation in normal endometrial tissue (NE), simple endometrial hyperplasia (SH), atypical endometrial hyperplasia (AH) and endometrial carcinoma (EC) stages I–IV. The International Federation of Gynecology and Obstetrics (FIGO) staging system was applied. *Analyzed by Fisher’s exact test. NS, not statistically significant.
