@misc{indiciaeaee67643e7e5,
  title = {Statistics notebook: Entry II.C: Masked studies.},
  author = {P N De Land and W W Chase},
  year = {1991},
  doi = {10.1097/00006324-199106000-00012},
  url = {https://pubmed.ncbi.nlm.nih.gov/1891200/},
  note = {Source identifier: 1891200}
}