@misc{indiciae3c3880ccb3a8,
  title = {A new portable oxygen system using liquid oxygen.},
  author = {C M Ramage and S S Kee and A Bristow},
  year = {1991},
  doi = {10.1111/j.1365-2044.1991.tb09555.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/2035791/},
  note = {Source identifier: 2035791}
}