@misc{indiciae56e025a63efc,
  title = {Secondary capsulotomy. How often?},
  author = {B A Crawford and A T Crawford},
  year = {1991},
  doi = {10.1111/j.1442-9071.1991.tb00646.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/1930999/},
  note = {Source identifier: 1930999}
}