title: Hospital utilization control by PROs: a guide through the maze.
mesh_terms: D003953:Diagnosis-Related Groups; D006761:Hospitals / Q000706:statistics & numerical data*; D010819:Physician's Role; D011366:Professional Review Organizations / Q000331:legislation & jurisprudence*; D011445:Prospective Payment System / Q000331:legislation & jurisprudence; D014481:United States