@misc{indiciae755340abb5cb,
  title = {Oxygen therapy after abdominal surgery.},
  author = {G B Drummond and D J Wright},
  year = {1977},
  doi = {10.1093/bja/49.8.789},
  url = {https://pubmed.ncbi.nlm.nih.gov/889667/},
  note = {Source identifier: 889667}
}