@misc{indiciaefb061d2fb516,
  title = {Epidemiological evaluation of immunisation and other factors in the control of whooping-cough.},
  author = {W R Bassili and G T Stewart},
  year = {1976},
  doi = {10.1016/s0140-6736(76)91488-4},
  url = {https://pubmed.ncbi.nlm.nih.gov/55731/},
  note = {Source identifier: 55731}
}