title: Causal inference in nonrandomized studies via propensity score methods.
authors: Department of Statistics and Actuarial Science, University of Waterloo, Waterloo, Ontario, Canada. ccotton@uwaterloo.ca
authors: Cecilia A
authors: CA
authors: Cotton
authors: Meaghan S
authors: MS
authors: Cuerden
authors: Richard J
authors: RJ
authors: Cook
mesh_terms: D000367:Age Factors; D002986:Clinical Trials as Topic / Q000379:methods*; D006801:Humans; D008962:Models, Theoretical; D012307:Risk Factors