@misc{indiciaeb0476abf72a1,
  title = {Immunisation levels and the computer.},
  author = {A L Byssey and B S Holmes},
  year = {1978},
  doi = {10.1016/s0140-6736(78)91249-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/75483/},
  note = {Source identifier: 75483}
}