Propensity score matching and subclassification in observational studies with multi-level treatments
Yang, Shu ; Imbens, Guido W. ; Cui, Zhanglin ; Faries, Douglas E. ; Kadziola, Zbigniew
Biometrics, 2016-12, Vol.72 (4), p.1055-1065 [Periódico revisado por pares]United States: Blackwell Publishing Ltd
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