@misc{indiciae62ff42228a5d,
  title = {Vaccines for smallpox.},
  author = {T Blanchard and G L Smith and H Whittle},
  year = {1999},
  doi = {10.1016/s0140-6736(99)00134-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/10437891/},
  note = {Source identifier: 10437891}
}