@misc{indiciaee928d218b44e,
  title = {Subject selection in hospital-based case-control studies.},
  author = {J A Knottnerus},
  year = {1987},
  doi = {10.1016/0021-9681(87)90071-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/3818872/},
  note = {Source identifier: 3818872}
}