TY  - RPRT
TI  - Chronic bronchitis and emphysema.
AU  - W M Thurlbeck
PY  - 1973
DO  - 10.1016/s0025-7125(16)32265-9
UR  - https://pubmed.ncbi.nlm.nih.gov/4573463/
ID  - 4573463
ER  -