@misc{indiciae5eb7b02ff524,
  title = {Germinal centre B cells: antigen specificity and changes in heavy chain class expression.},
  author = {G Kraal and I L Weissman and E C Butcher},
  year = {1982},
  doi = {10.1038/298377a0},
  url = {https://pubmed.ncbi.nlm.nih.gov/6806671/},
  note = {Source identifier: 6806671}
}