@misc{indiciae67881826b578,
  title = {A least-squares strain estimator for elastography.},
  author = {F Kallel and J Ophir},
  year = {1997},
  doi = {10.1177/016173469701900303},
  url = {https://pubmed.ncbi.nlm.nih.gov/9447668/},
  note = {Source identifier: 9447668}
}