Figure 4.

A plot of the mean scores for the four new symptoms added to the Revised Fibromyalgia Impact Questionnaire (memory, tenderness, balance, and environmental sensitivity) against each of the four groups: fibromyalgia (FM), rheumatoid arthritis/systemic lupus erythematosus (RA/SLE), healthy, and major depressive disorder (MDD).

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