title: Propensity score methods.
authors.affiliation: Department of Statistics, Harvard University, Cambridge, Massachusetts 02138, USA. rubin@stat.harvard.edu
authors.forename: Donald B
authors.initials: DB
authors.lastname: Rubin
mesh_terms: D006801:Humans; D015233:Models, Statistical; D009885:Ophthalmology / Q000706:statistics & numerical data*; D011336:Probability