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Forest plot for the correlation of CDH1 hypermethylation status from 12 publications showing the pooled OR under a random-effects model in 594 HCC versus 581 benign samples, OR = 3.40, 95% CI = 1.35 to 8.59. CDH1 = E-cadherin, CI = confidence interval, HCC = hepatocellular carcinoma, OR = odds ratio.
