@misc{indiciae62e2c1fbc3a2,
  title = {For oxygen security.},
  author = {R M Epstein},
  year = {1969},
  doi = {10.1097/00000542-196910000-00001},
  url = {https://pubmed.ncbi.nlm.nih.gov/5811594/},
  note = {Source identifier: 5811594}
}