@misc{indiciae1708d9402870,
  title = {Routine smallpox vaccination--no longer advisable?},
  author = {L D Polk},
  year = {1972},
  doi = {10.1177/000992287201100101},
  url = {https://pubmed.ncbi.nlm.nih.gov/5061324/},
  note = {Source identifier: 5061324}
}