@misc{indiciae316c3092ba2b,
  title = {Diabetic retinopathy.},
  author = {B P Harrold},
  year = {1971},
  doi = {10.1016/s0140-6736(71)80047-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/4099348/},
  note = {Source identifier: 4099348}
}