@article{econhot_econhot-cited-834675ca62098eff,
  title = {The role of the propensity score in estimating dose-response functions},
  author = {Guido W. Imbens},
  journal = {Biometrika},
  year = {2000},
  volume = {87},
  number = {3},
  pages = {706-710},
  doi = {10.1093/biomet/87.3.706},
  url = {https://doi.org/10.1093/biomet/87.3.706}
}