@misc{indiciaef04e23e363cd, title = {Extrathoracic egg-shell calcifications in silicosis.}, author = {A A POLACHEK and W J PIJANOWSKI}, year = {1960}, doi = {10.1164/arrd.1960.82.5.714}, url = {https://pubmed.ncbi.nlm.nih.gov/13736664/}, note = {Source identifier: 13736664} }