@misc{indiciaec10969f810ec,
  title = {A new ventilator for closed breathing systems.},
  author = {A Twigley and M K Chakrabarti and J G Whitwam},
  year = {1987},
  doi = {10.1111/j.1365-2044.1987.tb03986.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/3473946/},
  note = {Source identifier: 3473946}
}