Choy EH, Arnold LM, Clauw DJ, Crofford LJ, Glass JM, Simon LS, Martin SA, Strand CV, Williams DA, Mease PJ. Content and criterion validity of the preliminary core dataset for clinical trials in fibromyalgia syndrome. J Rheumatol. 2009 Oct 1;36(10):2330-4.
Mease P, Arnold LM, Choy EH, Clauw DJ, Crofford LJ, Glass JM, Martin SA, Morea J, Simon L, Strand CV, Williams DA. Fibromyalgia syndrome module at OMERACT 9: domain construct. J Rheumatol. 2009 Oct 1;36(10):2318-29.