Competing hospitals use regional database to cut cardiac surgery mortality.
D019985:Benchmarking; D002423:Cause of Death; D014487:Centers for Medicare and Medicaid Services, U.S.; D001026:Coronary Artery Bypass / Q000401:mortality*; D003953:Diagnosis-Related Groups; D019538:Health Care Surveys; D017052:Hospital Mortality; D006801:Humans; D008485:Medical Audit; D009511:New England / Q000453:epidemiology; D014481:United States