Spine
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Prospective cohort study. ⋯ 3.
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Prospective cohort study. ⋯ 3.
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Retrospective comparative cohort. ⋯ 3.
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Retrospective study. ⋯ 5.
Prospective cohort study. ⋯ 3.
Prospective cohort study. ⋯ 3.
Retrospective comparative cohort. ⋯ 3.
Retrospective study. ⋯ 5.