@misc{indiciae9fa7c970b561,
  title = {A simple flowmeter for unusual gases.},
  author = {I Farquhar and P Eldridge},
  year = {1990},
  doi = {10.1093/bja/64.1.113},
  url = {https://pubmed.ncbi.nlm.nih.gov/2137347/},
  note = {Source identifier: 2137347}
}