Cawson MR, Mitchell SA, Knight C, Wildey H, Spurden D, Bird A, Orme ME. Systematic review, network meta-analysis and economic evaluation of biological therapy for the management of active psoriatic arthritis. BMC Musculoskelet Disord. 2014 Jan 20;15(1):26. doi: 10.1186/1471-2474-15-26.
Perrot S, Schaefer C, Knight T, Gabriel (Hufstader) M, Chandran AB, Zlateva G. Societal and individual burden of illness among fibromyalgia patients in France: association between disease severity and OMERACT core domains. BMC Musculoskelet Disord. 2012 Feb 17;13:22. doi: 10.1186/1471-2474-13-22
Primatesta P, Plana Hortoneda E, Rothenbacher D. Gout treatment and comorbidities: a retrospective cohort study in a large US managed care population. BMC Musculoskelet Disord. 2011 May 20;12:103. doi: 10.1186/1471-2474-12-103