title: CCRN: a validation of competence.
authors.forename: J R
authors.initials: JR
authors.lastname: Johnson
mesh_terms: D002568:Certification; D002983:Clinical Competence; D003422:Critical Care / Q000451:nursing* / Q000592:standards; D006801:Humans; D013041:Specialties, Nursing; D014481:United States