@misc{indiciae9f4923f3571e,
  title = {Frameless stereotactic ultrasonography: method and applications.},
  author = {J W Trobaugh and W D Richard and K R Smith and R D Bucholz},
  doi = {10.1016/0895-6111(94)90048-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/7923043/},
  note = {Source identifier: 7923043}
}