@misc{indiciae2ee16dd20eb6,
  title = {Initial glaucomatous optic disk and retinal nerve fiber layer abnormalities and their progression.},
  author = {A Tuulonen and P J Airaksinen},
  year = {1991},
  doi = {10.1016/s0002-9394(14)72385-2},
  url = {https://pubmed.ncbi.nlm.nih.gov/2012151/},
  note = {Source identifier: 2012151}
}