@misc{indiciaeb4e2b5d0e5b4,
  title = {Increased precision using countermatching in nested case-control studies.},
  author = {K Steenland and J A Deddens},
  year = {1997},
  doi = {10.1097/00001648-199705000-00002},
  url = {https://pubmed.ncbi.nlm.nih.gov/9115016/},
  note = {Source identifier: 9115016}
}