后路椎间盘镜下多节段有限减压治疗腰椎管狭窄症18例疗效分析
후로추간반경하다절단유한감압치료요추관협착증18례료효분석
Multi-level limited decompression by microendoscopic disectomy through posterior approach for treatment of lumbar spinal stenosis:a report of 18 cases
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