@misc{indiciaec9d2f03f3438,
  title = {Pain in the elderly.},
  author = {E M Nation and C A Warfield},
  year = {1989},
  doi = {10.1080/21548331.1989.11703749},
  url = {https://pubmed.ncbi.nlm.nih.gov/2501319/},
  note = {Source identifier: 2501319}
}