@misc{indiciae7db318b18e6d,
  title = {Functional specificity of thymus- dependent lymphocytes.},
  author = {W E Paul and B Benacerraf},
  year = {1977},
  doi = {10.1126/science.320663},
  url = {https://pubmed.ncbi.nlm.nih.gov/320663/},
  note = {Source identifier: 320663}
}