@misc{indiciae3d905a758a75,
  title = {Letter: Tracheobronchial suction catheters.},
  author = {M A Sackner},
  year = {1976},
  doi = {10.1378/chest.70.2.318b},
  url = {https://pubmed.ncbi.nlm.nih.gov/947708/},
  note = {Source identifier: 947708}
}