@misc{indiciaec24bc64e89b9,
  title = {Gateshead tuberculin survey.},
  author = {E L Feinmann and D F Henley and K M Martischnig},
  year = {1973},
  doi = {10.1136/bmj.1.5854.681-b},
  url = {https://pubmed.ncbi.nlm.nih.gov/4692728/},
  note = {Source identifier: 4692728}
}