@misc{indiciaef828e3902558,
  title = {A valve ventilator attachment for the bronchoscope.},
  author = {L S Gottlieb and D Sayers and O J Balchum},
  year = {1972},
  doi = {10.1164/arrd.1972.105.4.644},
  url = {https://pubmed.ncbi.nlm.nih.gov/4502247/},
  note = {Source identifier: 4502247}
}