@misc{indiciae5278225dbd39,
  title = {[Visual acuity charts printed in gray].},
  author = {E Mawas and E Muller Feuga and J B Weiss},
  year = {1988},
  url = {https://pubmed.ncbi.nlm.nih.gov/3214907/},
  note = {Source identifier: 3214907}
}