@misc{indiciae87afd98628ec,
  title = {Choosing an appropriate criterion for true or false conversion in serial tuberculin testing.},
  author = {P De March-Ayuela},
  year = {1990},
  doi = {10.1164/ajrccm/141.4\_pt\_1.815},
  url = {https://pubmed.ncbi.nlm.nih.gov/2327645/},
  note = {Source identifier: 2327645}
}