@misc{indiciae35126305e05c,
  title = {A study in visual defects in young children.},
  author = {P A TYSER and T W LETCHWORTH},
  year = {1949},
  doi = {10.1136/bmj.2.4635.1022},
  url = {https://pubmed.ncbi.nlm.nih.gov/15393040/},
  note = {Source identifier: 15393040}
}