title: On principles for modeling propensity scores in medical research.
authors.forename: Donald B
authors.initials: DB
authors.lastname: Rubin
mesh_terms: D035843:Biomedical Research / Q000706:statistics & numerical data*; D006801:Humans; D015233:Models, Statistical; D016032:Randomized Controlled Trials as Topic; D012107:Research Design / Q000592:standards