@misc{indiciaebdaaf3fa30e1,
  title = {[Practical application of tuberculin tests].},
  author = {A Zimmermann and U Ackermann-Liebrich},
  year = {1981},
  doi = {10.1007/bf02078337},
  url = {https://pubmed.ncbi.nlm.nih.gov/7314928/},
  note = {Source identifier: 7314928}
}