@misc{indiciae7c5387eca8e0,
  title = {Statistics on blindness.},
  author = {P R Day},
  year = {1968},
  doi = {10.1136/bmj.1.5584.117-b},
  url = {https://pubmed.ncbi.nlm.nih.gov/5634699/},
  note = {Source identifier: 5634699}
}