@misc{indiciaeb9a7167323a0,
  title = {An adjustable collimator for stereotactic radiosurgery.},
  author = {P H McGinley and E K Butker and I R Crocker and R Aiken},
  year = {1992},
  doi = {10.1088/0031-9155/37/2/008},
  url = {https://pubmed.ncbi.nlm.nih.gov/1553391/},
  note = {Source identifier: 1553391}
}