@misc{indiciae3e4e9c99c8d1,
  title = {Pertussis immunisation.},
  author = {D P Davies},
  year = {1981},
  doi = {10.1136/bmj.283.6287.382},
  url = {https://pubmed.ncbi.nlm.nih.gov/6788339/},
  note = {Source identifier: 6788339}
}