title: The expanding vista of advanced practice nursing.
authors.forename: S J
authors.initials: SJ
authors.lastname: Olsen
mesh_terms: D000575:American Nurses' Association; D006801:Humans; D008008:Licensure, Nursing; D009720:Nurse Clinicians; D012956:Societies, Nursing; D013041:Specialties, Nursing; D014481:United States