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(a) Pie chart showing the mean distribution of CpGs in promoter, exon, intron and intergenic regions across all 12 trophoblast samples. b-d) Pie charts showing the percentage of differentially methylated CpG located in promoter, exon, intron and intergenic regions when (b) side-population trophoblasts (SP) are compared to cytotrophoblasts (CTB), (c) SP are compared to extravillous trophoblasts (EVT), or (d) CTB are compared to EVT.
