Control over the utilization of medical services.
D000068:Accreditation; D003695:Delivery of Health Care; D006279:Health Maintenance Organizations; D006761:Hospitals / Q000592:standards; D006801:Humans; D007348:Insurance, Health; D007603:Jurisprudence; D007883:Legislation, Medical; D010380:Peer Review; D011366:Professional Review Organizations; D011787:Quality of Health Care; D013222:State Medicine; D006113:United Kingdom; D014481:United States; D014600:Utilization Review