Figure 4.

Histograms showing the relative frequency of subjects as a function of number of peptide reactivities against the 12 investigated citrullinated peptides for (a) all RA patients, (b) CCP-positive RA patients, (c) CCP-negative RA patients, and (d) healthy controls.

Hansson et al. Arthritis Research & Therapy 2012 14:R201   doi:10.1186/ar4039
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