@misc{indiciae327c476bd309,
  title = {Attention and visual threshold.},
  author = {H SCHUCKMAN},
  year = {1963},
  doi = {10.1097/00006324-196305000-00005},
  url = {https://pubmed.ncbi.nlm.nih.gov/13987130/},
  note = {Source identifier: 13987130}
}