TY  - RPRT
TI  - Central lymph node changes and progressive massive fibrosis in coalworkers.
AU  - R M Seal
AU  - A Cockcroft
AU  - I Kung
AU  - J C Wagner
PY  - 1986
DO  - 10.1136/thx.41.7.531
UR  - https://pubmed.ncbi.nlm.nih.gov/3787533/
ID  - 3787533
ER  -