@misc{indiciae3caa452146d7,
  title = {Research design clarified.},
  author = {P P Freddolino and D P Moxley and J A Fleishman},
  year = {1990},
  doi = {10.1176/ps.41.7.807},
  url = {https://pubmed.ncbi.nlm.nih.gov/2194928/},
  note = {Source identifier: 2194928}
}