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APA Citation
Sansbury, L., Anley, G., Bains, C., Ho, S., & Ismaila, A. (n.d.). p68 Disease burden, treatment, and health care utilisation of COPD patients by their GOLD classification in the U.K. Thorax, 73, A138–A139. http://access.bl.uk/ark:/81055/vdc_100144722290.0x00003b