@misc{indiciae3e8a7adedfcc,
  title = {Ultrasonic duplex echo-Doppler scanner.},
  author = {F E Barber and D W Baker and A W Nation and D E Strandness and J M Reid},
  year = {1974},
  doi = {10.1109/tbme.1974.324295},
  url = {https://pubmed.ncbi.nlm.nih.gov/4818795/},
  note = {Source identifier: 4818795}
}