@misc{indiciaea75736d10f76,
  title = {Evaluation of extramural programs.},
  author = {J A Chappell and J D Hain},
  year = {1979},
  doi = {10.1097/00007611-197906000-00027},
  url = {https://pubmed.ncbi.nlm.nih.gov/451660/},
  note = {Source identifier: 451660}
}