1. March L, Smith EU, Hoy DG, Cross MJ, Sanchez-Rie L, Blyth F, Buchbinder R, Vos T, Woolf AD (2014) Burden of disability due to musculoskeletal (MSK) disorders. Best Pract Res Clin Rheumatol 28:353–366. doi: 10.1016/j.berh.2014.08.002
2. Gabriel S, Michaud K (2009) Epidemiological studies in incidence, prevalence, mortality and comorbidity of the rheumatic diseases. Arthritis Res Ther 11:229. doi: 10.1186/ar2669
3. Smith E, Hoy DG, Cross M, Vos T, Naghavi M, Buchbinder R, Woolf A, March L (2014) The global burden of other musculoskeletal disorders: estimates from the GBD 2010 study. Ann Rheum Dis 73:1462–1469. doi: 10.1136/annrheumdis-2013-204680
4. Bennett K, Cardiel MH, Ferraz MB, Riedemann P, Goldsmith CH, Tugwell P (1997) Community screening for rheumatic disorder: cross cultural adaptation and screening characteristics of the COPCORD Core Questionnaire in Brazil, Chile, and Mexico. J Rheumatol 24:160–168
5. Bennett K, Cardiel MH, Ferraz MB, Riedemann P, Goldsmith CH, Tugwell P (1997) Community screening for rheumatic disorder: cross-cultural adaptation and screening characteristics of the COPCORD Core Questionnaire in Brazil, Chile, and Mexico. The PANLAR-COPCORD Working Group. J Rheumatol 24:160–168