TY  - RPRT
TI  - Changing concepts of COPD.
AU  - T S Mair
PY  - 1995
DO  - 10.1111/j.2042-3306.1995.tb04417.x
UR  - https://pubmed.ncbi.nlm.nih.gov/8565934/
ID  - 8565934
ER  -