title: [Quality assurance systems: concepts and theoretical framework].
authors.forename: N L
authors.initials: NL
authors.lastname: Hsu
mesh_terms: D000575:American Nurses' Association; D006801:Humans; D008962:Models, Theoretical; D009732:Nursing Care / Q000592:standards*; D009739:Nursing Services / Q000592:standards; D011785:Quality Assurance, Health Care; D014481:United States