@misc{indiciae83da159963e3,
  title = {Transfer factor: past, present and future.},
  author = {H H Fudenberg},
  year = {1989},
  doi = {10.1146/annurev.pa.29.040189.002355},
  url = {https://pubmed.ncbi.nlm.nih.gov/2658777/},
  note = {Source identifier: 2658777}
}