@misc{indiciaece72fc5f59a6,
  title = {The two by two diagram: a graphical truth table.},
  author = {K M Johnson},
  year = {1999},
  doi = {10.1016/s0895-4356(99)00087-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/10527001/},
  note = {Source identifier: 10527001}
}