@misc{indiciae6cfcb9738bae,
  title = {Changing advice on vaccination.},
  author = {J A Begg},
  year = {1978},
  doi = {10.1136/bmj.2.6144.1088-d},
  url = {https://pubmed.ncbi.nlm.nih.gov/709239/},
  note = {Source identifier: 709239}
}