@misc{indiciae2040fb6bc5ce,
  title = {Threshold subtraction in radionuclide imaging.},
  author = {A C Perkins and D R Whalley},
  year = {1988},
  doi = {10.1259/0007-1285-61-725-425-a},
  url = {https://pubmed.ncbi.nlm.nih.gov/3289672/},
  note = {Source identifier: 3289672}
}