@misc{indiciaef22c57c18185,
  title = {CT collimator damage: detection by testing scan beam and laser-light alignment.},
  author = {M J McCullough},
  year = {1985},
  doi = {10.1148/radiology.155.2.3983409},
  url = {https://pubmed.ncbi.nlm.nih.gov/3983409/},
  note = {Source identifier: 3983409}
}