title: Variables affecting nurse practitioner salaries.
mesh_terms: D004509:Education, Nursing, Continuing; D004522:Educational Status; D006801:Humans; D009722:Nurse Practitioners / Q000191:economics*; D011364:Professional Practice; D012179:Retirement; D012456:Salaries and Fringe Benefits; D011795:Surveys and Questionnaires; D014481:United States