@misc{indiciae7e7662812078,
  title = {The case-control study and retrospective controls.},
  author = {D Young},
  year = {1979},
  doi = {10.1136/bmj.2.6203.1508},
  url = {https://pubmed.ncbi.nlm.nih.gov/393359/},
  note = {Source identifier: 393359}
}