Spine
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Single-institution, retrospective case series. ⋯ 4.
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Retrospective comparative study. ⋯ 4.
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Retrospective cohort study. ⋯ 3.
Single-institution, retrospective case series. ⋯ 4.
Retrospective comparative study. ⋯ 4.
Retrospective cohort study. ⋯ 3.