@misc{indiciaeb38940915720,
  title = {Improved mirror systems for high resolution ultrasonic imaging.},
  author = {J J Nicoll and J M Piggins and W N McDicken and R Borthwick},
  year = {1985},
  doi = {10.1177/016173468500700201},
  url = {https://pubmed.ncbi.nlm.nih.gov/3909599/},
  note = {Source identifier: 3909599}
}