@misc{indiciae36d8504edc09,
  title = {Macrophage-digested antigen as inducer of delayed hypersensitivity.},
  author = {M N Pearson and S Raffel},
  year = {1971},
  doi = {10.1084/jem.133.3.494},
  url = {https://pubmed.ncbi.nlm.nih.gov/5111439/},
  note = {Source identifier: 5111439}
}