@misc{indiciaebd0c401fe1ed,
  title = {Quantitative bremsstrahlung single photon emission computed tomographic imaging: use for volume, activity, and absorbed dose calculations.},
  author = {J A Siegel and L S Zeiger and S E Order and P E Wallner},
  year = {1995},
  doi = {10.1016/0360-3016(94)00464-1},
  url = {https://pubmed.ncbi.nlm.nih.gov/7860411/},
  note = {Source identifier: 7860411}
}