@misc{indiciae53c3cec12efc,
  title = {Compared to what? Finding controls for case-control studies.},
  author = {David A Grimes and Kenneth F Schulz},
  doi = {10.1016/s0140-6736(05)66379-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/15836892/},
  note = {Source identifier: 15836892}
}