Cite
MLA Citation
Thomas M. Siler et al.. “Efficacy and Safety of Umeclidinium Added to Fluticasone Propionate/Salmeterol in Patients with COPD: Results of Two Randomized, Double-Blind Studies.” COPD, vol. 13, 2016, pp. 1–10. http://access.bl.uk/ark:/81055/vdc_100057750827.0x000025