@misc{indiciaed26fdba6f1b6,
  title = {Ventitube for providing oxygen-enriched air.},
  author = {J C Stoddart},
  year = {1971},
  doi = {10.1016/s0140-6736(71)90805-1},
  url = {https://pubmed.ncbi.nlm.nih.gov/4099241/},
  note = {Source identifier: 4099241}
}