@misc{indiciae34308fcb8df4,
  title = {Monitoring preoxygenation.},
  author = {I T Campbell and P C Beatty},
  year = {1994},
  doi = {10.1093/bja/72.1.3},
  url = {https://pubmed.ncbi.nlm.nih.gov/8110546/},
  note = {Source identifier: 8110546}
}