@misc{indiciae83aaa60854fc,
  title = {Hearing aid with noise-level-controlled selective amplification.},
  author = {H Ono and J Kanzaki and K Mizoi},
  year = {1981},
  doi = {10.1016/s0140-6736(81)91521-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/6118698/},
  note = {Source identifier: 6118698}
}