Workforce by the numbers.
D005544:Forecasting; D006280:Health Workforce / Q000639:trends*; D006801:Humans; D008875:Middle Aged; D009740:Nursing Staff / Q000523:psychology / Q000600:supply & distribution*; D010563:Personnel Turnover / Q000706:statistics & numerical data; D011157:Population Dynamics; D014481:United States