@misc{indiciaec932e7c69f84,
  title = {Improving the slit-lamp Goldmann tonometer.},
  author = {J M Parel and D Denham and E W Norton},
  year = {1977},
  doi = {10.1016/0002-9394(77)90690-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/900237/},
  note = {Source identifier: 900237}
}