PSROs: their current status and their impact to date.
D003211:Concurrent Review; D003362:Cost-Benefit Analysis; D005069:Evaluation Studies as Topic; D006761:Hospitals / Q000706:statistics & numerical data; D006278:Medicare / Q000706:statistics & numerical data; D011366:Professional Review Organizations / Q000191:economics; D011787:Quality of Health Care; D014481:United States