@misc{indiciae731178398e05,
  title = {Ventilation perfusion imaging--again.},
  author = {M J O'Doherty and T O Nunan},
  year = {1992},
  doi = {10.1097/00006231-199205000-00001},
  url = {https://pubmed.ncbi.nlm.nih.gov/1603468/},
  note = {Source identifier: 1603468}
}