Locum tenens. Up, up and away.
D003284:Contract Services / Q000706:statistics & numerical data*; D003625:Data Collection; D006280:Health Workforce; D010561:Personnel Staffing and Scheduling / Q000191:economics / Q000706:statistics & numerical data / Q000639:trends*; D010820:Physicians / Q000600:supply & distribution*; D013038:Specialization; D014481:United States