@misc{indiciaeb91fe9dd260f,
  title = {Illuminator for subtraction technique.},
  author = {T A Kendig and A Hood},
  year = {1971},
  doi = {10.1148/101.2.445},
  url = {https://pubmed.ncbi.nlm.nih.gov/4940009/},
  note = {Source identifier: 4940009}
}