PSROs and norms of care.
D000574:American Medical Association; D003954:Diagnostic Services; D006760:Hospitalization; D007883:Legislation, Medical; D007902:Length of Stay; D008484:Medicaid; D006278:Medicare; D008511:Medicine; D011366:Professional Review Organizations; D011787:Quality of Health Care; D012955:Societies, Medical; D013038:Specialization; D009626:Terminology as Topic; D014481:United States; D014600:Utilization Review