@misc{indiciae0ba920281fef,
  title = {Observer error in serial radiography.},
  author = {A H COUCH and P H SUTTON and R S THORPE},
  year = {1956},
  doi = {10.1016/s0041-3879(56)80118-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/13324959/},
  note = {Source identifier: 13324959}
}