@misc{indiciae32f9f895bed0,
  title = {Pre-emption in immunity.},
  author = {C M O'Toole and A J Davies},
  year = {1971},
  doi = {10.1038/230187a0},
  url = {https://pubmed.ncbi.nlm.nih.gov/4925796/},
  note = {Source identifier: 4925796}
}