@misc{indiciae4dd9774e6773,
  title = {Direction of causality.},
  author = {G Carey},
  year = {1994},
  doi = {10.1002/gepi.1370110604},
  url = {https://pubmed.ncbi.nlm.nih.gov/7713389/},
  note = {Source identifier: 7713389}
}