Fig. 2From: The effects of long-term daily folic acid and vitamin B12 supplementation on genome-wide DNA methylation in elderly subjectsChanges in serum levels of folate, vitamin B12, and plasma levels of homocysteine. Individual changes in serum levels of folate and vitamin B12 and plasma levels of homocysteine after the 2-year intervention with folic acid and vitamin B12 or placebo. Horizontal lines represent median ± interquartile rangesBack to article page