@misc{indiciaecfebc59c96c9,
  title = {[5 years without smallpox: problems and outlooks].},
  author = {I D Ladnyĭ and A I Gromyko},
  year = {1983},
  url = {https://pubmed.ncbi.nlm.nih.gov/6314715/},
  note = {Source identifier: 6314715}
}