@misc{indiciaebd704c4aeb68,
  title = {Pertussis immunization.},
  author = {L D Frenkel},
  year = {1986},
  doi = {10.3928/0090-4481-19860601-08},
  url = {https://pubmed.ncbi.nlm.nih.gov/3523404/},
  note = {Source identifier: 3523404}
}