Figure 3From: Enhanced late-outgrowth circulating endothelial progenitor cell levels in rheumatoid arthritis and correlation with disease activityAssociations of endothelial progenitor cell (EPC) levels in rheumatoid arthritis (RA) with disease activity. Correlation between EPC counts and disease activity (a) and association of lower EPC levels in different groups of RA patients according to disease activity score (P < 0.01) (b). 7AAD, 7-aminoactinomycin D; DAS-28, 28-joint disease activity score; Lin-, lineage-negative; VEGFR-2, vascular endothelial growth factor receptor-2.Back to article page