@misc{indiciaecd3e0215699c,
  title = {X-ray equipment.},
  author = {D J Manton},
  year = {1971},
  doi = {10.1136/bmj.3.5765.50-a},
  url = {https://pubmed.ncbi.nlm.nih.gov/5091908/},
  note = {Source identifier: 5091908}
}