Figure 4.

Representation of cytokines produced by rheumatoid arthritis patients and healthy controls. The percentage of rheumatoid arthritis (RA) patients or of healthy controls with positive responses (> 2 standard deviations (SD) above the mean response towards the corresponding native peptide) was calculated for each cytokine, and is plotted for responses to citrullinated (cit) fibrinogen, aggrecan and collagen type II.

Law et al. Arthritis Research & Therapy 2012 14:R118   doi:10.1186/ar3848
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