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Association between MGMT promoter/enhancer methylation and MGMT SNP rs16906252 genotypes. MGMT (a) promoter, (b) enhancer 1, (c) enhancer 3, (d) enhancer 2, and (e) enhancer 4 regions. Gray vertical lines separate data obtained with different assays. Significance levels: * p ≤ 0.05, ** p ≤ 0.01, *** p ≤ 0.001. Data points represent the mean of two independent PCR-PSQ runs.
