Fig. 2From: Improvements in lung function following vitamin C supplementation to pregnant smokers are associated with buccal DNA methylation at 5 years of ageOverlap of vitamin C DMCs with lung function DMCs and mediation analysis. The Venn diagram (top) shows the overlap of 62 CpGs associated with vitamin C supplementation (in blue) and FEF25–75 (in pink) both at p < 0.001. Mediation analysis was performed for each of the 62 CpGs associated with both exposure and outcome as indicated in the schematicBack to article page