@misc{indiciaeb92a23a7d7c4,
  title = {Macrophage-induced thymic lymphocyte maturation.},
  author = {J G Van den Tweel and W S Walker},
  year = {1977},
  url = {https://pubmed.ncbi.nlm.nih.gov/304037/},
  note = {Source identifier: 304037}
}