Figure 1.

Baseline cytokine expression. Significantly altered baseline cytokine expression of primary nasal epithelial cells concerning G-CSF (A) and IL-8 (B) of granulomatosis with polyangiitis (GPA) patients compared to normal controls (NC). Data are represented as box plots showing the median as a straight line; the boxes correspond to the 75th and 25th percentiles and the whiskers indicate normal variation limits.

Wohlers et al. Arthritis Research & Therapy 2012 14:R203   doi:10.1186/ar4041
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