@misc{indiciaefa3876834cfc,
  title = {A hand-held electronically switched array for rapid ultrasonic scanning.},
  author = {T A Whittingham},
  year = {1976},
  doi = {10.1016/0041-624x(76)90069-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/1251551/},
  note = {Source identifier: 1251551}
}