@misc{indiciae3b22eac472f7,
  title = {Black lungs.},
  author = {P Gross and R T De Treville},
  year = {1970},
  doi = {10.1080/00039896.1970.10665620},
  url = {https://pubmed.ncbi.nlm.nih.gov/5429986/},
  note = {Source identifier: 5429986}
}