Additional file 1.
A PDF that provides the 2 page version of the FIQR that was used in the non-fibromyalgia patients; this questionnaire does not use the word 'fibromyalgia' and is termed the Symptom Impact Questionnaire (SIQR).
Format: PDF Size: 52KB Download file
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Bennett et al. Arthritis Research & Therapy 2009 11:415 doi:10.1186/ar2830