@misc{indiciaee5dca469d753,
  title = {Pulsed dose oxygen delivery system.},
  author = {J E Cotes},
  year = {1999},
  doi = {10.1136/thx.54.8.750a},
  url = {https://pubmed.ncbi.nlm.nih.gov/10490414/},
  note = {Source identifier: 10490414}
}