@misc{indiciaef954ed3ce453,
  title = {Confounding in epidemiological studies.},
  author = {A N Phillips and G Davey Smith},
  year = {1993},
  doi = {10.1136/bmj.306.6870.142-b},
  url = {https://pubmed.ncbi.nlm.nih.gov/8435623/},
  note = {Source identifier: 8435623}
}