TY - JOUR TI - Constructing a Control Group Using Multivariate Matched Sampling Methods That Incorporate the Propensity Score AU - Paul R. Rosenbaum AU - Donald B. Rubin JO - The American Statistician PY - 1985 VL - 39 IS - 1 DO - 10.2307/2683903 UR - https://doi.org/10.2307/2683903 ER -