FIGURE 3.

Forest plot of the studies on the association between manganese superoxide dismutase Ala-9Val polymorphism and schizophrenia by meta-analysis with the fixed-effect analysis. (A) Ala-9Val genotypes and (B) Ala-9Val alleles. OR = odds ratio.

Forest plot of the studies on the association between manganese superoxide dismutase Ala-9Val polymorphism and schizophrenia by meta-analysis with the fixed-effect analysis. (A) Ala-9Val genotypes and (B) Ala-9Val alleles. OR = odds ratio.