TY  - RPRT
TI  - COPD: early detection and intervention.
AU  - P M Calverley
PY  - 2000
DO  - 10.1378/chest.117.5_suppl_2.365s
UR  - https://pubmed.ncbi.nlm.nih.gov/10843978/
ID  - 10843978
ER  -