Managed care: the payoff keeps getting better.
Murray
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D003625:Data Collection; D004470:Economics, Medical; D006279:Health Maintenance Organizations / Q000191:economics / Q000706:statistics & numerical data; D007182:Income / Q000706:statistics & numerical data; D008329:Managed Care Programs / Q000191:economics / Q000706:statistics & numerical data*; D008511:Medicine / Q000706:statistics & numerical data; D009819:Office Visits / Q000706:statistics & numerical data; D011243:Preferred Provider Organizations / Q000191:economics / Q000706:statistics & numerical data; D013038:Specialization; D011795:Surveys and Questionnaires; D014481:United States