Cite
MLA Citation
C Vogelmeier et al.. “P237 Comparison of COPD exacerbations with once-daily QVA149 versus twice-daily salmeterol/fluticasone combination: the ILLUMINATE study.” Thorax, vol. 68, n.d., pp. A184–A185. http://access.bl.uk/ark:/81055/vdc_100135137907.0x000025