@misc{indiciaeb0a72f57e751,
  title = {Immunization and other prophylactic measures.},
  author = {L Roodyn},
  year = {1974},
  doi = {10.1136/bmj.4.5945.648},
  url = {https://pubmed.ncbi.nlm.nih.gov/4613420/},
  note = {Source identifier: 4613420}
}