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ID4 genes CpG sites methylation frequencies between patients with aplastic anemia and those with myelodysplastic syndrome. ●: One positive CpG site (CG); ○: One negative CpG site (TG). TSS: Transcriptional start site; NBM: Normal bone marrow. The ID4 gene methylation positivity site frequency in patients with myelodysplastic syndrome (29.38% [141/480]) was significantly higher than that of the patients with AA (8.125% [39/480]) (P = 0.000).
