Spine
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A retrospective comparative study. ⋯ 3.
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Comparative study. ⋯ 3.
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Retrospective cohort study. ⋯ 3.
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Retrospective case control study. ⋯ 3.
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Case report. ⋯ 5.
A retrospective comparative study. ⋯ 3.
Comparative study. ⋯ 3.
Retrospective cohort study. ⋯ 3.
Retrospective case control study. ⋯ 3.
Case report. ⋯ 5.