Figure 2.

Correlation between the percentages of IL-21+IL-17- cells and IL-21-IL-17+ cells within the CD4+ T-cells in peripheral blood of healthy controls (HCs) (A), and patients with granulomatosis with polyangiitis (GPA) (B). Spearman rank correlation coefficients (r) and P-values are given.

Abdulahad et al. Arthritis Research & Therapy 2013 15:R70   doi:10.1186/ar4247
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