@misc{indiciaebc0bf0ef0864,
  title = {A comparative study of cognitive functioning in old age.},
  author = {H Klonoff and M Kennedy},
  year = {1966},
  doi = {10.1093/geronj/21.2.239},
  url = {https://pubmed.ncbi.nlm.nih.gov/5930518/},
  note = {Source identifier: 5930518}
}