@misc{indiciae4661fd2de5fa,
  title = {Letter: Complex and polyfunctional antibodies.},
  author = {J Hirschfeld},
  year = {1974},
  doi = {10.1016/0019-2791(74)90370-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/4137760/},
  note = {Source identifier: 4137760}
}