@misc{indiciae7484dfd68d74,
  title = {Sleep disorders in the elderly.},
  author = {R E Waldhorn},
  year = {1989},
  doi = {10.1159/000417399},
  url = {https://pubmed.ncbi.nlm.nih.gov/2686362/},
  note = {Source identifier: 2686362}
}