@misc{indiciaeca1c5a6c74e9,
  title = {Smallpox vaccines: Past, present, and future.},
  author = {Janie Parrino and Barney S Graham},
  year = {2006},
  doi = {10.1016/j.jaci.2006.09.037},
  url = {https://pubmed.ncbi.nlm.nih.gov/17157663/},
  note = {Source identifier: 17157663}
}