@misc{indiciae8fc1cdd4a6a4,
  title = {Composite mask subtraction. White-over-white technique.},
  author = {D L Sucher and R D Strand},
  year = {1974},
  doi = {10.1148/113.2.470b},
  url = {https://pubmed.ncbi.nlm.nih.gov/4608869/},
  note = {Source identifier: 4608869}
}