@misc{indiciaec5bcace4c315,
  title = {[Smallpox, an old foe].},
  author = {H G Schatzmayr},
  doi = {10.1590/s0102-311x2001000600024},
  url = {https://pubmed.ncbi.nlm.nih.gov/11784914/},
  note = {Source identifier: 11784914}
}