@misc{indiciae2f8e4282c9c5,
  title = {Simple noninvasive test for evaluating defects in pulmonary perfusion.},
  author = {M K Ali and R L Burdett and C C Shullenberger},
  year = {1975},
  url = {https://pubmed.ncbi.nlm.nih.gov/1114461/},
  note = {Source identifier: 1114461}
}