@misc{indiciae55dc5e463db9,
  title = {Tangent screen perimetry using twin test objects.},
  author = {J T Coyle and D F Milam},
  year = {1977},
  doi = {10.1016/0002-9394(77)90926-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/868998/},
  note = {Source identifier: 868998}
}