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APA Citation
Hopkinson, N. D., Muir, K. R., Oliver, M. A., Doherty, M., & Powell, R. J. (1995). distribution of cases of systemic lupus erythematosus at time of first symptom in an urban area.. Annals of the rheumatic diseases, 54(11), 891–895. http://access.bl.uk/ark:/81055/vdc_100137792213.0x00005f