@misc{indiciaea2deef9ca340,
  title = {A modified binocular gonioscope.},
  author = {P R MCDONALD},
  year = {1952},
  doi = {10.1016/0002-9394(52)92173-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/12985800/},
  note = {Source identifier: 12985800}
}