@misc{indiciae57a4b447865a,
  title = {Operating-theatre ventilation.},
  author = {J Charnley},
  year = {1970},
  doi = {10.1016/s0140-6736(70)91174-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/4191648/},
  note = {Source identifier: 4191648}
}