Utilization review in the United States: results from a 1976-1977 national survey of hospitals.
D000704:Analysis of Variance; D001291:Attitude of Health Personnel; D003211:Concurrent Review; D006761:Hospitals / Q000706:statistics & numerical data*; D007350:Insurance, Hospitalization / Q000191:economics; D008485:Medical Audit; D006278:Medicare / Q000706:statistics & numerical data; D010343:Patient Admission; D011366:Professional Review Organizations; D011795:Surveys and Questionnaires; D014481:United States; D014600:Utilization Review