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Figure 4. Correlation between age and gene promoter methylation. (A) Correlation between age and MGMT promoter methylation in CRC tissues (P = 0.002). (B) Correlation between age and hMLH1 promoter methylation in CRC tissues (P = 0.0006). (C) Correlation between age and APC promoter methylation in adjacent healthy tissues (P = 0.01).
