@misc{indiciaea7c4d61e987b,
  title = {Carotid duplex imaging: variation and validation.},
  author = {J M Perkins and R B Galland and M J Simmons and T R Magee},
  year = {2000},
  doi = {10.1046/j.1365-2168.2000.01389.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/10718801/},
  note = {Source identifier: 10718801}
}