@misc{indiciaecc4922f93cce,
  title = {Bounding causal effects under uncontrolled confounding using counterfactuals.},
  author = {Richard F MacLehose and Sol Kaufman and Jay S Kaufman and Charles Poole},
  year = {2005},
  doi = {10.1097/01.ede.0000166500.23446.53},
  url = {https://pubmed.ncbi.nlm.nih.gov/15951674/},
  note = {Source identifier: 15951674}
}