@misc{indiciaeea6fe0ab79f4,
  title = {Pre-oxygenation--how long?},
  author = {M Berthoud and D H Read and J Norman},
  year = {1983},
  doi = {10.1111/j.1365-2044.1983.tb13925.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/6402951/},
  note = {Source identifier: 6402951}
}