Spine
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Observational Study
Bone Turnover Markers as a New Predicting Factor for Non-union After Spinal Fusion Surgery.
Retrospective observational study. ⋯ 4.
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Meta Analysis
Cell-Based Therapies for lumbar discogenic low back pain - Systematic Review and Single Arm Meta-Analysis.
A systematic review and single-arm meta-analysis of clinical trials. ⋯ 4.
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Secondary analysis of data from a prospective multicenter observational study. ⋯ 2.
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A retrospective epidemiological study. ⋯ 3.