@misc{indiciaea9c4492049a6,
  title = {Evaluating program benefit.},
  author = {S S Tobin},
  year = {1971},
  doi = {10.1093/geront/11.4\_part\_2.55},
  url = {https://pubmed.ncbi.nlm.nih.gov/5118190/},
  note = {Source identifier: 5118190}
}