%0 Journal Article %A ROBERT FERRARI %A ANTHONY S. RUSSELL %T Effort Testing and Symptom Exaggeration Testing Are Essential in Assessing Patients with Fibromyalgia for Disability %D 2016 %R 10.3899/jrheum.160686 %J The Journal of Rheumatology %P 2077-2077 %V 43 %N 11 %U https://www.jrheum.org/content/jrheum/43/11/2077.1.full.pdf