Figure 5.

Histograms showing types of peak flow as measured using laser Doppler fluxmetry [13]. (a) In the lower arm and (b) at the lateral epicondyle [13] of patients with systemic scleroderma (SSc), rheumatoid arthritis (RA), or primary fibromyalgia (FM) and in healthy controls (Co). *P < 0.05, **P < 0.01, in comparison with Co.