@misc{indiciae5328bc128481,
  title = {A method for detecting a cohort exposure.},
  author = {S T Sacks and S Selvin},
  year = {1981},
  doi = {10.1016/0013-9351(81)90088-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/7238463/},
  note = {Source identifier: 7238463}
}