@misc{indiciaee48be4da520e,
  title = {An approach to several problems in using large databases for population-based case-control studies of the therapeutic efficacy and safety of anti-hypertensive medicines.},
  author = {B M Psaty and T D Koepsell and D Siscovick and P Wahl and J P Logerfo and T S Inui and E H Wagner},
  year = {1991},
  doi = {10.1002/sim.4780100416},
  url = {https://pubmed.ncbi.nlm.nih.gov/1676187/},
  note = {Source identifier: 1676187}
}