Supplemental nursing services: how and why are they used?
D003266:Continuity of Patient Care; D004469:Economics, Hospital; D006742:Hospital Bed Capacity; D006801:Humans; D009739:Nursing Services / Q000706:statistics & numerical data*; D009741:Nursing Staff, Hospital / Q000191:economics / Q000600:supply & distribution*; D010557:Personnel Administration, Hospital; D014481:United States