@misc{indiciaec89a34ac7e6c,
  title = {Pertussis vaccine.},
  author = {J D Macgregor},
  year = {1979},
  doi = {10.1016/s0140-6736(79)90692-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/90855/},
  note = {Source identifier: 90855}
}