@misc{indiciae66a7e5c4a6ed,
  title = {Preoxygenation.},
  author = {R B Keifer and J A Stirt},
  year = {1995},
  doi = {10.1097/00000542-199508000-00031},
  url = {https://pubmed.ncbi.nlm.nih.gov/7631970/},
  note = {Source identifier: 7631970}
}