@misc{indiciaed868f6a0b204,
  title = {Speaking tubes for bedside use.},
  author = {M Armstrong and P L Efros},
  year = {1995},
  doi = {10.1177/019459989511200423},
  url = {https://pubmed.ncbi.nlm.nih.gov/7700676/},
  note = {Source identifier: 7700676}
}