@misc{indiciae8d3ad30d77fb,
  title = {A simple device for measuring angles without marking the radiographic film.},
  author = {L R Kuhns and A J Martin},
  year = {1975},
  doi = {10.1148/115.1.220},
  url = {https://pubmed.ncbi.nlm.nih.gov/1118607/},
  note = {Source identifier: 1118607}
}