@misc{indiciaef17d98504427,
  title = {World problems in viral vaccines.},
  author = {W C Cockburn},
  year = {1969},
  doi = {10.1093/oxfordjournals.bmb.a070679},
  url = {https://pubmed.ncbi.nlm.nih.gov/4919552/},
  note = {Source identifier: 4919552}
}