title: Standards, guidelines, and norms.
authors.forename: J André
authors.initials: JA
authors.lastname: Knottnerus
authors.forename: Peter
authors.initials: P
authors.lastname: Tugwell
mesh_terms: D003627:Data Interpretation, Statistical; D019317:Evidence-Based Medicine / Q000592:standards*; D006801:Humans; D017410:Practice Guidelines as Topic / Q000592:standards*; D017594:Publication Bias / Q000639:trends*