@misc{indiciae92cf78038c40,
  title = {Pulmonary calcinosis.},
  author = {D Heath and A J Robertson},
  year = {1977},
  doi = {10.1136/thx.32.5.606},
  url = {https://pubmed.ncbi.nlm.nih.gov/594943/},
  note = {Source identifier: 594943}
}