@misc{indiciae887c2f350f6b,
  title = {Original antigenic sin: experiments with a defined antigen.},
  author = {I J East and P E Todd and S J Leach},
  year = {1980},
  doi = {10.1016/0161-5890(80)90179-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/6170878/},
  note = {Source identifier: 6170878}
}