@misc{indiciaec5934d2f81f4,
  title = {Clinical epidemiology.},
  author = {D L Sackett},
  year = {1969},
  doi = {10.1093/oxfordjournals.aje.a120921},
  url = {https://pubmed.ncbi.nlm.nih.gov/5765952/},
  note = {Source identifier: 5765952}
}