@misc{indiciae6c75422ecf87,
  title = {Introduction to classical crossprotection.},
  author = {R S Fraser},
  year = {1998},
  doi = {10.1385/0-89603-385-6:13},
  url = {https://pubmed.ncbi.nlm.nih.gov/9760490/},
  note = {Source identifier: 9760490}
}