@misc{indiciae1f57ea346dae,
  title = {Frame and focus.},
  author = {N R Epstein},
  year = {1992},
  doi = {10.7326/0003-4819-117-8-690},
  url = {https://pubmed.ncbi.nlm.nih.gov/1530201/},
  note = {Source identifier: 1530201}
}