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

This file can be viewed with: Adobe Acrobat Reader

Bennett et al. Arthritis Research & Therapy 2009 11:415   doi:10.1186/ar2830