@misc{indiciaee6f53ca41f7c,
  title = {Venturi ventilation for bronchography.},
  author = {H J Birkhan and J Lemer and M Ohlgisser},
  year = {1978},
  doi = {10.1093/bja/50.3.304-b},
  url = {https://pubmed.ncbi.nlm.nih.gov/638005/},
  note = {Source identifier: 638005}
}