Figure 1From: Developmental genes targeted for epigenetic variation between twin-twin transfusion syndrome childrenExtents of repetitive region DNA methylation between donors and recipients stratified by sample type. Mean LINE1 methylation extent in peripheral blood (A) and in saliva (B). Mean ALU-Yb8 methylation extent in peripheral blood (C) and saliva (D). The median of the LINE1 methylation extent in peripheral blood between donors and recipients was statistically significantly different (Mann–Whitney U test, P <0.03).Back to article page