MT genes, deoxyribonucleic acid methyltransferase genes; SNPs, single nucleotide polymorphisms; HWE, Hardy-Weinberg equilibrium.H. Li et al. / EBioMedicine 13 (2016) 125?number of cases and controls, and value of HWE. To ensure accuracy of the data, inconsistencies were discussed with another reviewer until reach a consensus.3.2. Meta-analysis and Systematic Review The associations between DNMTs p