We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleEstimating causal effects from large data sets using propensity scores.AuthorsRubin DBPublicationAnnals of internal medicine, 1997, Vol 127, Issue 8 Pt 2, p757ISSN0003-4819Publication typearticleDOI10.7326/0003-4819-127-8_part_2-199710151-00064