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APA Citation
Dransfield, M., Crim, C., Criner, G., Halpin, D., Han, M., Jones, C., Kilbride, S., Lange, P., Lipson, D., Lomas, D., Martinez, F., Singh, D., & Wise, R. (n.d.). p248 Risk of exacerbation and pneumonia with single inhaler triple versus dual therapy in IMPACT. Thorax, 73, A236. http://access.bl.uk/ark:/81055/vdc_100144722889.0x000039