Spine
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Retrospective observational cohort study. ⋯ 3.
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An experimental laboratory-based biomechanical study. ⋯ 5.
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Retrospective cohort study. ⋯ 3.
Retrospective observational cohort study. ⋯ 3.
An experimental laboratory-based biomechanical study. ⋯ 5.
Retrospective cohort study. ⋯ 3.