@misc{indiciae080aa5c29083,
  title = {Simpson's paradox.},
  author = {D Costain},
  year = {1979},
  doi = {10.1192/bjp.135.5.485},
  url = {https://pubmed.ncbi.nlm.nih.gov/540218/},
  note = {Source identifier: 540218}
}