@misc{indiciae78a8ea26ccfe,
  title = {Contrast matching techniques for digital subtraction radiography: an objective evaluation.},
  author = {B Likar and R Bernard and F Pernus},
  year = {1996},
  url = {https://pubmed.ncbi.nlm.nih.gov/8947675/},
  note = {Source identifier: 8947675}
}