Spine
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Systematic review. ⋯ 4.
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Retrospective study. ⋯ 3.
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Comparative Study
Decompression With or Without Fusion for Lumbar Stenosis: A Cost Minimization Analysis.
Retrospective database review. ⋯ 3.
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A cross-sectional study. ⋯ 2.
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Retrospective cohort study. ⋯ 3.