@misc{indiciae1fefef238596,
  title = {Aids to hearing.},
  author = {K M DAY},
  year = {1954},
  doi = {10.1288/00005537-195401000-00004},
  url = {https://pubmed.ncbi.nlm.nih.gov/13143914/},
  note = {Source identifier: 13143914}
}