The central role of the propensity score in observational studies for causal effects by Paul R. Rosenbaum and Donald B. Rubin
= The central role of the propensity score in observational studies for causal effects by Paul R. Rosenbaum and Donald B. Rubin
{tag=Work by Paul R. Rosenbaum}
{tag=Work by Donald B. Rubin}
{title2=1983}
https://academic.oup.com/biomet/article/70/1/41/240879
DOI: https://doi.org/10.1093/biomet/70.1.41