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APA Citation
Bernatsky, S., Joseph, L., Pineau, C. A., Bélisle, P., Boivin, J. F., Banerjee, D., & Clarke, A. E. (2009). estimating the prevalence of polymyositis and dermatomyositis from administrative data: age, sex and regional differences. Annals of the rheumatic diseases, 68(7), 1192–1196. http://access.bl.uk/ark:/81055/vdc_100135539044.0x00005f