@misc{indiciae813ccf1e4c8a,
  title = {A developmental switch in B lymphopoiesis.},
  author = {R R Hardy and K Hayakawa},
  year = {1991},
  doi = {10.1073/pnas.88.24.11550},
  url = {https://pubmed.ncbi.nlm.nih.gov/1722338/},
  note = {Source identifier: 1722338}
}