@misc{indiciaecbfedacf7abf,
  title = {Further thoughts on swine flu immunization.},
  author = {C M Buttery and D J Merchant},
  year = {1979},
  doi = {10.2105/ajph.69.8.820},
  url = {https://pubmed.ncbi.nlm.nih.gov/453419/},
  note = {Source identifier: 453419}
}