title: Propensity scores: help or hype?
authors.affiliation: Division of Pharmacoepidemiology and Pharmacoeconomics, Brigham and Women's Hospital, Harvard Medical School, Boston, USA. wolfgang@post.harvard.edu
authors.forename: Wolfgang C
authors.initials: WC
authors.lastname: Winkelmayer
authors.forename: Tobias
authors.initials: T
authors.lastname: Kurth
mesh_terms: D015986:Confounding Factors, Epidemiologic; D006801:Humans; D015233:Models, Statistical; D013812:Therapeutics / Q000706:statistics & numerical data*