@misc{indiciaef7b303399da9,
  title = {A constant depth ultrasonic scanner.},
  author = {V R McCready and C R Hill},
  year = {1971},
  doi = {10.1259/0007-1285-44-526-747},
  url = {https://pubmed.ncbi.nlm.nih.gov/5117048/},
  note = {Source identifier: 5117048}
}