Data base would cover all hospitals in 35 states.
Gardner
E
E
D003625:Data Collection; D016208:Databases, Factual; D006302:Health Services Research; D006761:Hospitals / Q000706:statistics & numerical data*; D010351:Patient Discharge / Q000706:statistics & numerical data*; D014481:United States; D016270:United States Agency for Healthcare Research and Quality