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APA Citation
Ekins-Daukes, S., Simpson, C. R., Helms, P. J., Taylor, M. W., & McLay, J. S. (2002). burden of corticosteroids in children with asthma in primary care: retrospective observational study. BMJ, 324(7350), 1374–. http://access.bl.uk/ark:/81055/vdc_100177579996.0x000036