Figure 2From: Increased frequency of circulating IL-21 producing Th-cells in patients with granulomatosis with polyangiitis (GPA)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.Back to article page