TY  - RPRT
TI  - COPD: Working towards a greater understanding. Introduction.
AU  - N F Voelkel
PY  - 2000
DO  - 10.1378/chest.117.5_suppl_2.325s
UR  - https://pubmed.ncbi.nlm.nih.gov/10843970/
ID  - 10843970
ER  -