TY  - RPRT
TI  - Introductory remarks concerning pathological changes in coal workers' pneumoconiosis.
AU  - P C Pratt
PY  - 1972
DO  - 10.1111/j.1749-6632.1972.tb40200.x
UR  - https://pubmed.ncbi.nlm.nih.gov/4513321/
ID  - 4513321
ER  -