@misc{indiciae6b73285a343f,
  title = {Better aids for the deaf.},
  author = {H Hillman},
  year = {1973},
  doi = {10.1136/bmj.3.5870.53},
  url = {https://pubmed.ncbi.nlm.nih.gov/4717435/},
  note = {Source identifier: 4717435}
}