@misc{indiciae60197c602b8e,
  title = {Tuberculin conversions: true or false?},
  author = {S Grzybowski},
  year = {1979},
  doi = {10.1164/arrd.1979.119.2.321a},
  url = {https://pubmed.ncbi.nlm.nih.gov/434605/},
  note = {Source identifier: 434605}
}