@misc{indiciaed3e1d23c4a5d,
  title = {Quantitative tests with old tuberculin in sanatorium practice.},
  author = {C E Woodruff and P T Chapman and W L Howard and M D Klopfenstein and W J Steininger},
  year = {1968},
  doi = {10.1164/arrd.1968.98.2.270},
  url = {https://pubmed.ncbi.nlm.nih.gov/4970048/},
  note = {Source identifier: 4970048}
}