@misc{indiciaeb6c7aebb6bdf,
  title = {Busulphan lung.},
  author = {W A Littler and J M Kay and P S Hasleton and D Heath},
  year = {1969},
  doi = {10.1136/thx.24.6.639},
  url = {https://pubmed.ncbi.nlm.nih.gov/5260190/},
  note = {Source identifier: 5260190}
}