@misc{indiciaee6fed5a8f18d,
  title = {IgG4 breaking the rules.},
  author = {Rob C Aalberse and Janine Schuurman},
  year = {2002},
  doi = {10.1046/j.0019-2805.2001.01341.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/11849310/},
  note = {Source identifier: 11849310}
}