Managed care ... new study of 1,200 U.S. hospitals.
D002391:Catchment Area, Health; D003625:Data Collection; D006302:Health Services Research; D017721:Hospital Costs; D006761:Hospitals / Q000639:trends*; D008329:Managed Care Programs / Q000191:economics*; D011787:Quality of Health Care; D014481:United States / Q000453:epidemiology