@misc{indiciaed7e089551c9c,
  title = {Influenza: the agent.},
  author = {P W Choppin},
  year = {1977},
  doi = {10.1080/21548331.1977.11707083},
  url = {https://pubmed.ncbi.nlm.nih.gov/65314/},
  note = {Source identifier: 65314}
}