@misc{indiciae095d64a5ed3f,
  title = {Chemotactic activity in dialyzable transfer factor.},
  author = {J I Gallin and C H Kirkpatrick},
  year = {1974},
  doi = {10.1073/pnas.71.2.498},
  url = {https://pubmed.ncbi.nlm.nih.gov/4205594/},
  note = {Source identifier: 4205594}
}