TY  - RPRT
TI  - Obstructive pulmonary emphysema.
AU  - J B HICKMAN
PY  - 1962
DO  - 10.7326/0003-4819-57-1-174
UR  - https://pubmed.ncbi.nlm.nih.gov/13907185/
ID  - 13907185
ER  -