@misc{indiciae3d89d18d02df,
  title = {A simple skull X-ray marker.},
  author = {A G Davies},
  year = {1971},
  doi = {10.1259/0007-1285-44-520-324},
  url = {https://pubmed.ncbi.nlm.nih.gov/5552156/},
  note = {Source identifier: 5552156}
}