TY  - RPRT
TI  - COPD-whose burden, how large, and what to do about it?
AU  - Frederic R Curtiss
DO  - 10.18553/jmcp.2005.11.1.90
UR  - https://pubmed.ncbi.nlm.nih.gov/15667237/
ID  - 15667237
ER  -