TY  - RPRT
TI  - Early emphysema. Ten years' evolution.
AU  - M Demedts
AU  - J Aumann
PY  - 1988
DO  - 10.1378/chest.94.2.337
UR  - https://pubmed.ncbi.nlm.nih.gov/3396413/
ID  - 3396413
ER  -