title: Expanded use of nurse practitioners.
authors.forename: Wilbur T
authors.initials: WT
authors.lastname: Hill
mesh_terms: D006123:Group Practice / Q000458:organization & administration*; D006801:Humans; D009722:Nurse Practitioners / Q000592:standards / Q000706:statistics & numerical data*; D015397:Program Evaluation; D014481:United States