@misc{indiciae375e45573bc4,
  title = {Xenon ventilation-perfusion lung scans.},
  author = {G L Schall and H D McDonald and L B Carr and A Capozzi},
  year = {1979},
  url = {https://pubmed.ncbi.nlm.nih.gov/109624/},
  note = {Source identifier: 109624}
}