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APA Citation
Rayner, L., Sherlock, J., Creagh-Brown, B., Williams, J., & deLusignan, S. (2017). the prevalence of COPD in England: An ontological approach to case detection in primary care. Respiratory medicine, 132, 217–225. http://access.bl.uk/ark:/81055/vdc_100054759482.0x000030