Figure 2.

A scatterplot of the total score for the Revised Fibromyalgia Impact Questionnaire (FIQR) and the Fibromyalgia Impact Questionnaire (FIQ) on all 202 fibromyalgia subjects (r = 0.88, P < 0.001).

Bennett et al. Arthritis Research & Therapy 2009 11:R120   doi:10.1186/ar2783
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