Background: The objective of this study was to estimate the correlation between the Ecadherin (CDH1) promoter methylation and the risk of nasopharyngeal cancer. Methods: Based on previous online articles for the evaluation the hypermethylated status of CDH1 gene at the promoter region with nasopharyngeal carcinoma. two independent reviewers selected studies through databases on PubMed... https://allfixelectricales.shop/product-category/oob-switch-assembly/