@misc{indiciae9553d8eba69c,
  title = {Fibreoptic bronchoscopy.},
  author = {F I MacNaughton},
  year = {1977},
  doi = {10.1093/bja/49.10.1069},
  url = {https://pubmed.ncbi.nlm.nih.gov/921871/},
  note = {Source identifier: 921871}
}