@misc{indiciaec9c40998bc0a,
  title = {Encephalitis following smallpox vaccination.},
  author = {V B DOLGOPOL and M GREENBERG and R ARONOFF},
  year = {1955},
  doi = {10.1001/archneurpsyc.1955.02330080094018},
  url = {https://pubmed.ncbi.nlm.nih.gov/13227674/},
  note = {Source identifier: 13227674}
}