TY  - RPRT
TI  - Air pollution and COPD.
AU  - E M Cordasco
AU  - H S VanOrdstrand
PY  - 1977
DO  - 10.1080/00325481.1977.11712251
UR  - https://pubmed.ncbi.nlm.nih.gov/876896/
ID  - 876896
ER  -