@misc{indiciae7d6b6be247ad,
  title = {Oximetry--know thy limits.},
  author = {A L Ries},
  year = {1987},
  doi = {10.1378/chest.91.3.316},
  url = {https://pubmed.ncbi.nlm.nih.gov/3816308/},
  note = {Source identifier: 3816308}
}