TY  - RPRT
TI  - Chronic obstructive pulmonary disease.
AU  - David Price
AU  - Martin Duerden
PY  - 2003
DO  - 10.1136/bmj.326.7398.1046
UR  - https://pubmed.ncbi.nlm.nih.gov/12750181/
ID  - 12750181
ER  -