@misc{indiciaee6c5807090da,
  title = {Filtering procedures in open angle glaucoma.},
  author = {R N SHAFFER},
  year = {1963},
  doi = {10.1097/00004397-196303000-00010},
  url = {https://pubmed.ncbi.nlm.nih.gov/13988337/},
  note = {Source identifier: 13988337}
}