Ancillary services: CAT scan criteria aid review.
D007348:Insurance, Health / Q000191:economics*; D007349:Insurance, Health, Reimbursement / Q000191:economics*; D008484:Medicaid / Q000191:economics; D006278:Medicare / Q000191:economics; D014057:Tomography, X-Ray Computed / Q000191:economics* / Q000706:statistics & numerical data; D014481:United States