title: Nursing certification: an overview of 1990.
authors.forename: J
authors.initials: J
authors.lastname: Parker
mesh_terms: D002568:Certification; D004521:Educational Measurement / Q000706:statistics & numerical data*; D006801:Humans; D009398:Nephrology; D013041:Specialties, Nursing / Q000592:standards*; D014481:United States