@misc{indiciae191fbed7c664,
  title = {Hearing aids; procedures for testing and selection.},
  author = {W G HARDY},
  year = {1950},
  doi = {10.1080/00325481.1950.11693848},
  url = {https://pubmed.ncbi.nlm.nih.gov/15399870/},
  note = {Source identifier: 15399870}
}