@misc{indiciaedb27dec75c31,
  title = {Epidemiology: a retrospective study.},
  author = {D E Lilienfeld and A M Lilienfeld},
  year = {1977},
  doi = {10.1093/oxfordjournals.aje.a112490},
  url = {https://pubmed.ncbi.nlm.nih.gov/201169/},
  note = {Source identifier: 201169}
}