@misc{indiciae1f806314018a,
  title = {Canalicular blockage.},
  author = {J C Chang},
  year = {1973},
  doi = {10.1111/j.1442-9071.1973.tb01409.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/4761546/},
  note = {Source identifier: 4761546}
}