@misc{indiciaed87eea64032b,
  title = {Influenza.},
  author = {J L Schulman},
  year = {1971},
  doi = {10.1080/00325481.1971.11697673},
  url = {https://pubmed.ncbi.nlm.nih.gov/4943240/},
  note = {Source identifier: 4943240}
}