@misc{indiciaed609b9cb28e6,
  title = {Epidemic influenza: immunization and control.},
  author = {T Francis},
  year = {1967},
  doi = {10.1016/s0025-7125(16)33046-2},
  url = {https://pubmed.ncbi.nlm.nih.gov/6023804/},
  note = {Source identifier: 6023804}
}