@misc{indiciaecaf752bcd832,
  title = {Immunoglobulins.},
  author = {L van Es and K W Pondman},
  year = {1967},
  doi = {10.1056/nejm196703092761019},
  url = {https://pubmed.ncbi.nlm.nih.gov/4163843/},
  note = {Source identifier: 4163843}
}