@misc{indiciae36315dc8801c,
  title = {Measles in vaccinated communities.},
  author = {D A Griffiths},
  year = {1971},
  doi = {10.1016/s0140-6736(71)90699-4},
  url = {https://pubmed.ncbi.nlm.nih.gov/4107607/},
  note = {Source identifier: 4107607}
}