@misc{indiciae81af245d2c6d,
  title = {Pre-event smallpox vaccination: unresolved issues.},
  author = {Steven M Gordon},
  year = {2003},
  doi = {10.3949/ccjm.70.2.80},
  url = {https://pubmed.ncbi.nlm.nih.gov/12636337/},
  note = {Source identifier: 12636337}
}