Cite
APA Citation
Lawrence, P., Kolsum, U., Gupta, V., Donaldson, G., Singh, R., Barker, B., George, L., Webb, A., Brookes, A., Brightling, C., Wedzicha, J., & Singh, D. (2017). characteristics and longitudinal progression of chronic obstructive pulmonary disease in GOLD B patients. BMC pulmonary medicine, 17(1), 1–9. http://access.bl.uk/ark:/81055/vdc_100081141759.0x0001b0