title: The magic influence of classification systems in clinical practice.
authors.affiliation: Department of Public Health and Primary Health Care, University of Bergen, Norway.
authors.forename: K
authors.initials: K
authors.lastname: Malterud
authors.forename: H
authors.initials: H
authors.lastname: Hollnagel
mesh_terms: D002965:Classification / Q000379:methods; D004194:Disease / Q000145:classification*; D005194:Family Practice; D006801:Humans; D012307:Risk Factors; D009626:Terminology as Topic