TY  - RPRT
TI  - Chronic obstructive pulmonary disease (COPD).
AU  - R M Senior
AU  - N R Anthonisen
PY  - 1998
DO  - 10.1164/ajrccm.157.4.nhlbi-12
UR  - https://pubmed.ncbi.nlm.nih.gov/9563773/
ID  - 9563773
ER  -