title: Choosing appropriate comparators.
authors.forename: J André
authors.initials: JA
authors.lastname: Knottnerus
authors.forename: Peter
authors.initials: P
authors.lastname: Tugwell
mesh_terms: D057186:Comparative Effectiveness Research / Q000379:methods / Q000592:standards*; D017408:Guidelines as Topic; D006801:Humans; D017712:Peer Review, Research / Q000592:standards*; D016032:Randomized Controlled Trials as Topic / Q000592:standards*