@misc{indiciae0d7296bed756,
  title = {Interactions between molecules (subfactors) released by different T cell sets that yield a complete factor with biological (suppressive) activity.},
  author = {W Ptak and R W Rosenstein and R K Gershon},
  year = {1982},
  doi = {10.1073/pnas.79.7.2375},
  url = {https://pubmed.ncbi.nlm.nih.gov/6980420/},
  note = {Source identifier: 6980420}
}