TY  - RPRT
TI  - Calcified paramediastinal mass.
AU  - T A Johnston
AU  - I M Freundlich
PY  - 1971
DO  - 10.1378/chest.60.4.389
UR  - https://pubmed.ncbi.nlm.nih.gov/5115862/
ID  - 5115862
ER  -