title: Choosing methods to minimize confounding in observational studies: do the ends justify the means?
authors.forename: Robert W
authors.initials: RW
authors.lastname: Yeh
authors.forename: Laura
authors.initials: L
authors.lastname: Mauri
mesh_terms: D017130:Angioplasty; D002318:Cardiovascular Diseases / Q000453:epidemiology*; D057186:Comparative Effectiveness Research; D006801:Humans; D008297:Male; D015999:Multivariate Analysis; D015983:Selection Bias