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. 2004 Dec 10;7(2):R209–R216. doi: 10.1186/ar1459

Figure 6.

Figure 6

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