Maryland's experiment with quality measures.
D003625:Data Collection; D006761:Hospitals / Q000592:standards*; D007255:Information Services; D008396:Maryland; D011785:Quality Assurance, Health Care / Q000379:methods*; D012015:Reference Standards; D012952:Societies / Q000458:organization & administration*; D012954:Societies, Hospital / Q000458:organization & administration*