@article{econhot_econhot-cited-ee955b30b18532fb,
  title = {Reducing Bias in Observational Studies Using Subclassification on the Propensity Score},
  author = {Paul R. Rosenbaum and Donald B. Rubin},
  journal = {Journal of the American Statistical Association},
  year = {1984},
  volume = {79},
  number = {387},
  pages = {516},
  doi = {10.2307/2288398},
  url = {https://doi.org/10.2307/2288398}
}