@misc{indiciae7b36881cbd76,
  title = {Visual acuity and test performance.},
  author = {E Heron and A Zytkoskee},
  year = {1981},
  doi = {10.1097/00006324-198102000-00011},
  url = {https://pubmed.ncbi.nlm.nih.gov/7223847/},
  note = {Source identifier: 7223847}
}