@misc{indiciae95a2bced12f6,
  title = {Double punctum and canaliculus.},
  author = {A H Chignell},
  year = {1968},
  doi = {10.1016/0002-9394(68)94391-2},
  url = {https://pubmed.ncbi.nlm.nih.gov/5651630/},
  note = {Source identifier: 5651630}
}