@misc{indiciae55c88deab5e5,
  title = {In vitro lymphocytic stimulation with PPD.},
  author = {K B Spyropoulos and K Hatzigiannaki},
  year = {1985},
  doi = {10.1159/000194819},
  url = {https://pubmed.ncbi.nlm.nih.gov/4059672/},
  note = {Source identifier: 4059672}
}