TY  - RPRT
TI  - Coalmining, emphysema and compensation.
AU  - J B Gee
AU  - W K Morgan
PY  - 1991
DO  - 10.1136/oem.48.1.70
UR  - https://pubmed.ncbi.nlm.nih.gov/1825175/
ID  - 1825175
ER  -