@misc{indiciae039eab4ff13d,
  title = {The speaking-aid.},
  author = {H M Bird},
  year = {1965},
  doi = {10.1016/s0140-6736(65)92977-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/4165098/},
  note = {Source identifier: 4165098}
}