@misc{indiciaea1f82819bbeb,
  title = {Malignant tracheobronchial obstruction.},
  author = {J A Gaer and E R Townsend and S W Fountain},
  year = {1990},
  doi = {10.1016/0003-4975(90)90904-k},
  url = {https://pubmed.ncbi.nlm.nih.gov/2400453/},
  note = {Source identifier: 2400453}
}