@misc{indiciae289eb6ceec6a,
  title = {Reference ranges for IgG subclasses in preschool children.},
  author = {D Bird and S Duffy and D Isaacs and A D Webster},
  year = {1985},
  doi = {10.1136/adc.60.3.204},
  url = {https://pubmed.ncbi.nlm.nih.gov/3985649/},
  note = {Source identifier: 3985649}
}