@misc{indiciae31af7f147bbf,
  title = {A biological retrospect.},
  author = {P Medawar},
  year = {1965},
  doi = {10.1038/2071327a0},
  url = {https://pubmed.ncbi.nlm.nih.gov/5894873/},
  note = {Source identifier: 5894873}
}