Cite
MLA Citation
K Kalirai et al.. “P21 The relationship between employment status, work productivity and quality of life among patients with COPD: Cross-sectional analysis of the Birmingham COPD Cohort.” Thorax, vol. 68, n.d., pp. A83–A84. http://access.bl.uk/ark:/81055/vdc_100135163336.0x000027