@misc{indiciae154207b0ed54,
  title = {Single-element transducers.},
  author = {W D O'Brien},
  year = {1993},
  doi = {10.1148/radiographics.13.4.8356282},
  url = {https://pubmed.ncbi.nlm.nih.gov/8356282/},
  note = {Source identifier: 8356282}
}