@misc{indiciae85aa45a5235f,
  title = {Nathan W. Shock, PhD. gerontologist.},
  author = {J E Birren},
  year = {1978},
  doi = {10.1093/geronj/33.1.1},
  url = {https://pubmed.ncbi.nlm.nih.gov/338664/},
  note = {Source identifier: 338664}
}