@misc{indiciaec606a0fcd88b,
  title = {Perfusion scanning in chronic obstructive lung disease.},
  author = {J L Quinn},
  year = {1971},
  doi = {10.1016/s0001-2998(71)81016-4},
  url = {https://pubmed.ncbi.nlm.nih.gov/4942203/},
  note = {Source identifier: 4942203}
}