Spinal fusion under the microscope.
D014487:Centers for Medicare and Medicaid Services, U.S.; D004864:Equipment and Supplies; D019317:Evidence-Based Medicine; D006801:Humans; D007449:Investments; D017063:Outcome Assessment, Health Care; D010820:Physicians; D019736:Prostheses and Implants; D013123:Spinal Fusion / Q000191:economics / Q000706:statistics & numerical data; D014481:United States