Spine
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A Cochrane systematic review. ⋯ 1.
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A retrospective study of patients undergoing anterior cervical discectomy and fusion (ACDF) in the prospective National Surgical Quality Improvement Program (NSQIP) database. ⋯ 3.
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Retrospective cohort study. ⋯ 4.
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Case report. ⋯ 4.