Fig. 1From: Active but not inactive granulomatosis with polyangiitis is associated with decreased and phenotypically and functionally altered CD56dim natural killer cellsNatural killer (NK) cell counts are significantly lower in active (non-remission) granulomatosis with polyangiitis. Peripheral blood lymphocyte counts and lymphocyte subsets were determined by flow cytometry (clinical grade quality), as indicated in the figure. Only patients from cohort II were included (total patientsā=ā22, patients with active diseaseā=ā10, patients in remissionā=ā12). Boxplots show traditional Tukey whiskers; dotted lines show upper and lower limits of normal. Statistical analysis was performed using the Mann-Whitney test; ns not significant; ***pā=ā0.0005Back to article page