@misc{indiciaed45a1bad1de5,
  title = {Epidemiologic methods in immunization programs.},
  author = {R T Chen and W A Orenstein},
  year = {1996},
  doi = {10.1093/oxfordjournals.epirev.a017931},
  url = {https://pubmed.ncbi.nlm.nih.gov/9021306/},
  note = {Source identifier: 9021306}
}