@misc{indiciaed9bc93ce3a19,
  title = {Automated perimetry: background, instruments and methods.},
  author = {G L Portney and M A Krohn},
  doi = {10.1016/0039-6257(78)90073-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/635771/},
  note = {Source identifier: 635771}
}