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Distribution of combined genotypes of COMT Val158Met, rs165599 and MTHFR C677T, A1298C among cases and controls
OR, odds ratio; CI, confidence interval; COMT, catechol-O-methyltransferase; MTHFR, methylenetetrahydrofolate reductase.
*Reference category, OR=1, Val genotype; GG, Met carrier genotype; GA+AA.
