@misc{indiciae9007e2876c98,
  title = {Involved or not involved.},
  author = {M A Siegel},
  year = {1975},
  doi = {10.1177/216507997502300404},
  url = {https://pubmed.ncbi.nlm.nih.gov/1167951/},
  note = {Source identifier: 1167951}
}