@misc{indiciae05d9beef32d2,
  title = {Estimating causal effects from epidemiological data.},
  author = {Miguel A Hernán and James M Robins},
  year = {2006},
  doi = {10.1136/jech.2004.029496},
  url = {https://pubmed.ncbi.nlm.nih.gov/16790829/},
  note = {Source identifier: 16790829}
}