@misc{indiciae19e83619fc42,
  title = {Calcified paramediastinal mass.},
  author = {T A Johnston and I M Freundlich},
  year = {1971},
  doi = {10.1378/chest.60.4.389},
  url = {https://pubmed.ncbi.nlm.nih.gov/5115862/},
  note = {Source identifier: 5115862}
}