@misc{indiciae5321daf0a59b,
  title = {Two more respirators.},
  author = {J A HORTON and J S INKSTER and E A PASK},
  year = {1956},
  doi = {10.1093/bja/28.4.169},
  url = {https://pubmed.ncbi.nlm.nih.gov/13315863/},
  note = {Source identifier: 13315863}
}