Health care's third party payer: interloper or facilitator?
D003363:Cost Control / Q000639:trends; D005102:Health Expenditures / Q000191:economics*; D006801:Humans; D007348:Insurance, Health / Q000191:economics*; D010817:Physician-Patient Relations; D011787:Quality of Health Care / Q000191:economics*; D014481:United States