@misc{indiciae720511489026,
  title = {Epidemiological methods to evaluate vaccine efficacy.},
  author = {P G Smith},
  year = {1988},
  doi = {10.1093/oxfordjournals.bmb.a072276},
  url = {https://pubmed.ncbi.nlm.nih.gov/3076814/},
  note = {Source identifier: 3076814}
}