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Rubin, D.B. (2002). Using Propensity Scores to Help Design Observational Studies: Ap- plication to the Tobacco Litigation, Health Services & Outcomes Research Method- ology, 2, 178-186.
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Rubin, D.B. Using Propensity Scores to Help Design Observational Studies: Application to the Tobacco Litigation. Health Serv. Outcomes Res. Methodol. 2001, 2, 169-188. [CrossRef]
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Rubin, Donald B. (2001): Using Propensity Scores to Help Design Observational Stu- dies: Application to Tabacco Litigation. Health Services & Outcomes Research Methodology 2, 169-188.
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