@misc{indiciae7b83023a09c7,
  title = {An electronic timer for closed circuit anaesthesia.},
  author = {P Toft and M Djernes},
  year = {1988},
  doi = {10.1007/bf02919647},
  url = {https://pubmed.ncbi.nlm.nih.gov/3397616/},
  note = {Source identifier: 3397616}
}