@misc{indiciae9c9ee4ad1ce6,
  title = {Preschool vision screening.},
  author = {G V Catford},
  year = {1997},
  doi = {10.1136/bjo.81.5.421a},
  url = {https://pubmed.ncbi.nlm.nih.gov/9227217/},
  note = {Source identifier: 9227217}
}