@misc{indiciae3e11c53c5708,
  title = {Useful methods for sensitivity analysis of observational studies.},
  author = {S Greenland},
  year = {1999},
  doi = {10.1111/j.0006-341x.1999.00990.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/11315040/},
  note = {Source identifier: 11315040}
}