@misc{indiciae1a0aba7c9cd4,
  title = {Pyramid plan for eye care.},
  author = {R P Day},
  year = {1972},
  doi = {10.1136/bmj.2.5809.352-c},
  url = {https://pubmed.ncbi.nlm.nih.gov/5022058/},
  note = {Source identifier: 5022058}
}