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APA Citation
Bateman, E. D., O'Byrne, P. M., Busse, W. W., Lötvall, J., Bleecker, E. R., Andersen, L., Jacques, L., Frith, L., Lim, J., & Woodcock, A. (2014). once-daily fluticasone furoate (FF)/vilanterol reduces risk of severe exacerbations in asthma versus FF alone. Thorax, 69(4), 312–319. http://access.bl.uk/ark:/81055/vdc_100135162854.0x000025