@misc{indiciae5f0b01cff66c,
  title = {A training aid for audiometry practice.},
  author = {A Kettlety},
  year = {1974},
  doi = {10.1007/bf02477158},
  url = {https://pubmed.ncbi.nlm.nih.gov/4466971/},
  note = {Source identifier: 4466971}
}