@misc{indiciaeda0c076bd344,
  title = {Doppler perfusion index: an interobserver and intraobserver reproducibility study.},
  author = {K Oppo and E Leen and W J Angerson and T G Cooke and C S McArdle},
  year = {1998},
  doi = {10.1148/radiology.208.2.9680575},
  url = {https://pubmed.ncbi.nlm.nih.gov/9680575/},
  note = {Source identifier: 9680575}
}