Fig. 2From: Non-significant association between − 330 T/G polymorphism in interleukin-2 gene and chronic periodontitis: findings from a meta-analysisForest plot of comparison between the mutant allele versus the wild type allele (a), the wild type allele versus mutant allele (b), the homozygous mutant genotype versus the homozygous wild type genotype (c) and the homozygous wild type genotype versus the homozygous mutant genotype (d) in the -330 T/G polymorphism and CP riskBack to article page