@misc{indiciaeabcd71ae4de0,
  title = {Hearing aids for the elderly.},
  author = {G E Shambaugh},
  year = {1971},
  doi = {10.1001/jama.1971.03190070074029},
  url = {https://pubmed.ncbi.nlm.nih.gov/5109373/},
  note = {Source identifier: 5109373}
}