Nurse practitioners: a decade of change--Part IV.
D000553:Ambulatory Care; D004651:Employment / Q000639:trends*; D006801:Humans; D007400:Interprofessional Relations; D009722:Nurse Practitioners / Q000706:statistics & numerical data*; D010820:Physicians; D011320:Primary Health Care; D011364:Professional Practice / Q000639:trends; D013997:Time Factors; D014481:United States; D000078329:Workforce