@misc{indiciae91c0293e5859,
  title = {A serial afterimage experiment in clinical diagnostics.},
  author = {G J Smith and U Kragh},
  year = {1967},
  doi = {10.1111/j.1467-9450.1967.tb01374.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/6037260/},
  note = {Source identifier: 6037260}
}