短节段椎弓根钉内固定加后路植骨治疗峡部裂腰椎滑脱疗效观察
단절단추궁근정내고정가후로식골치료협부렬요추활탈료효관찰
RFⅡ internal fixation and posterior bone graft for treatment of isthmic spondylolysis
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