@misc{indiciaed621e50bcd50,
  title = {Observer sensitivity to small differences: a multipoint rank-order experiment.},
  author = {W F Good and J H Sumkin and N Dash and C M Johns and M L Zuley and H E Rockette and D Gur},
  year = {1999},
  doi = {10.2214/ajr.173.2.10430118},
  url = {https://pubmed.ncbi.nlm.nih.gov/10430118/},
  note = {Source identifier: 10430118}
}