@misc{indiciae7acd2b13956a,
  title = {Tracheostomy prostheses.},
  author = {H Swerdlow and A S Ketcham and J De Kernion},
  year = {1969},
  doi = {10.1016/0022-3913(69)90275-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/5254409/},
  note = {Source identifier: 5254409}
}