@misc{indiciaedfeae5ffe2e2,
  title = {Sequential cell-mediated immune responses in experimental gingivitis in man.},
  author = {T Lehner and J M Wilton and S J Challacombe and L Ivanyi},
  year = {1974},
  url = {https://pubmed.ncbi.nlm.nih.gov/4219840/},
  note = {Source identifier: 4219840}
}