@misc{indiciaeb06d5a288e63,
  title = {A pocket perimeter.},
  author = {S W Cohen},
  year = {1971},
  doi = {10.1001/archopht.1971.01000010188012},
  url = {https://pubmed.ncbi.nlm.nih.gov/5571417/},
  note = {Source identifier: 5571417}
}