TY  - RPRT
TI  - Air pollution and COPD.
AU  - J G Ayres
AU  - R M Harrison
PY  - 1995
DO  - 10.1136/thx.50.8.917
UR  - https://pubmed.ncbi.nlm.nih.gov/7570455/
ID  - 7570455
ER  -