1. Disability-adjusted life years (DALYs) for 291 diseases and injuries in 21 regions, 1990-2010: a systematic analysis for the global burden of disease study 2010;Murray;Lancet,2012
2. The burden of musculoskeletal conditions at the start of the new millenium,2003
3. What is the outcome of RA in 2011 and can we predict it?;Verstappen;Best Practice & Research. Clinical Rheumatology,2011
4. International classification of functioning, disability, and health;World Health Organization,2001
5. The international classification of functioning, disability and health (icf) core sets for rheumatoid arthritis: a way to specify functioning;Stucki;Annals of the Rheumatic Diseases,2004