Perspectives. Quality data: how good is it?
D014487:Centers for Medicare and Medicaid Services, U.S.; D003625:Data Collection / Q000592:standards; D006302:Health Services Research / Q000379:methods*; D015233:Models, Statistical; D009026:Mortality; D009735:Nursing Homes / Q000592:standards*; D011787:Quality of Health Care; D014481:United States