@misc{indiciae76984b88c295,
  title = {A redesigned anaesthetic gas machine.},
  author = {W E Spoerel and J A Bain and G R Heinrich},
  year = {1974},
  doi = {10.1007/bf03005739},
  url = {https://pubmed.ncbi.nlm.nih.gov/4838331/},
  note = {Source identifier: 4838331}
}