@misc{indiciae8996492d102e,
  title = {Oxygen masks.},
  author = {P K Barnes and S L Hill},
  year = {1983},
  doi = {10.1016/s0140-6736(83)92633-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/6130289/},
  note = {Source identifier: 6130289}
}