@misc{indiciaefbe7cd3834ad,
  title = {Quantitative SPECT: basic theoretical considerations.},
  author = {J A Parker},
  year = {1989},
  doi = {10.1016/s0001-2998(89)80031-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/2652305/},
  note = {Source identifier: 2652305}
}