@misc{indiciaeecff635f5abd,
  title = {Is diabetic retinopathy preventable?},
  author = {R L Engerman and T S Kern},
  year = {1987},
  doi = {10.1097/00004397-198702740-00002},
  url = {https://pubmed.ncbi.nlm.nih.gov/3319932/},
  note = {Source identifier: 3319932}
}