We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleCovariate selection in high-dimensional propensity score analyses of treatment effects in small samples.AuthorsRassen JA; Glynn RJ; Brookhart MA; Schneeweiss SPublicationAmerican journal of epidemiology, 2011, Vol 173, Issue 12, p1404ISSN1476-6256Publication typearticleDOI10.1093/aje/kwr001