Insurers try to slow rapid rise of advanced imaging servnices.
D006801:Humans; D019458:Insurance Coverage; D007348:Insurance, Health; D007349:Insurance, Health, Reimbursement; D049268:Positron-Emission Tomography / Q000191:economics / Q000706:statistics & numerical data*; D014057:Tomography, X-Ray Computed / Q000191:economics / Q000706:statistics & numerical data*; D014481:United States