TY  - RPRT
TI  - Extrathoracic egg-shell calcifications in silicosis.
AU  - A A POLACHEK
AU  - W J PIJANOWSKI
PY  - 1960
DO  - 10.1164/arrd.1960.82.5.714
UR  - https://pubmed.ncbi.nlm.nih.gov/13736664/
ID  - 13736664
ER  -