@misc{indiciaefbf65ae0450b,
  title = {Scleral rigidity, estimation with electronic tonometer.},
  author = {J A CASTREN and S POHJOLA},
  year = {1963},
  url = {https://pubmed.ncbi.nlm.nih.gov/14019266/},
  note = {Source identifier: 14019266}
}