@misc{indiciae23505f6a48da,
  title = {Screening for diabetic retinopathy.},
  author = {D E Singer and D M Nathan and H A Fogel and A P Schachat},
  year = {1992},
  doi = {10.7326/0003-4819-116-8-660},
  url = {https://pubmed.ncbi.nlm.nih.gov/1546868/},
  note = {Source identifier: 1546868}
}