@misc{indiciae7daa793aeecf,
  title = {Vaccines for smallpox.},
  author = {D Baxby},
  year = {1999},
  doi = {10.1016/s0140-6736(05)75837-2},
  url = {https://pubmed.ncbi.nlm.nih.gov/10437892/},
  note = {Source identifier: 10437892}
}