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APA Citation
Murray, C. S., Poletti, G., Kebadze, T., Morris, J., Woodcock, A., Johnston, S. L., & Custovic, A. (2006). study of modifiable risk factors for asthma exacerbations: virus infection and allergen exposure increase the risk of asthma hospital admissions in children. Thorax, 61(5), 376–382. http://access.bl.uk/ark:/81055/vdc_100135159636.0x000023