@misc{indiciae347d2f8aab41,
  title = {Letter: Oxygen therapy.},
  author = {G B Drummond},
  year = {1975},
  doi = {10.1093/bja/47.12.1339},
  url = {https://pubmed.ncbi.nlm.nih.gov/1218177/},
  note = {Source identifier: 1218177}
}