经骶裂孔穿刺置管腰椎硬膜外前间隙造影术对诊断腰椎间盘突出症的意义
경저렬공천자치관요추경막외전간극조영술대진단요추간반돌출증적의의
Significance of lumbar epidural anterior space angiography through sacral hiatus puncture in the diagnosis of lumbar disc herniation
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