@misc{indiciae84a441e15378,
  title = {Letter: Immunoglobulin standards.},
  author = {D J Ward and D J Lea},
  year = {1975},
  doi = {10.1016/s0140-6736(75)91527-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/48645/},
  note = {Source identifier: 48645}
}