@misc{indiciae0ddee96b9532,
  title = {[The closed Landolt ring--a handy test for evaluating suspected simulation].},
  author = {M Gräf and J Roesen},
  year = {2001},
  doi = {10.1055/s-2001-16258},
  url = {https://pubmed.ncbi.nlm.nih.gov/11488010/},
  note = {Source identifier: 11488010}
}