Cite
APA Citation
Pearce, S. J., Posner, V., Robinson, A. J., Barton, J. R., & Cotes, J. E. (1985). "Invalidity" due to chronic bronchitis and emphysema: how real is it?. Thorax, 40(11), 828–831. http://access.bl.uk/ark:/81055/vdc_100135572747.0x000034