@misc{indiciaedf641eedf1ea,
  title = {Progress toward developing a cataract classification system.},
  author = {M C Leske and L T Chylack and R Sperduto and M Pennett and D McCarthy},
  year = {1987},
  doi = {10.1159/000414685},
  url = {https://pubmed.ncbi.nlm.nih.gov/3691929/},
  note = {Source identifier: 3691929}
}