TY  - RPRT
TI  - Structural abnormalities in COPD.
AU  - S P Benjamin
AU  - L J McCormack
PY  - 1977
DO  - 10.1080/00325481.1977.11712249
UR  - https://pubmed.ncbi.nlm.nih.gov/876895/
ID  - 876895
ER  -