The purchaser role in provider quality: lessons from the United States.
Thomson
R
R
D003284:Contract Services / Q000592:standards*; D004739:England; D006801:Humans; D011682:Purchasing, Hospital / Q000191:economics / Q000592:standards; D011785:Quality Assurance, Health Care / Q000191:economics* / Q000592:standards; D014481:United States