@misc{indiciae5dfea227ea6f,
  title = {Smallpox: clinical and epidemiologic features.},
  author = {D A Henderson},
  doi = {10.3201/eid0504.990415},
  url = {https://pubmed.ncbi.nlm.nih.gov/10458961/},
  note = {Source identifier: 10458961}
}