Spine
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Prospective cohort study. ⋯ 3.
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Nonrandomized, retrospective, comparative, and single-center trial. ⋯ 3.
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Retrospective case series. ⋯ 4.
Prospective cohort study. ⋯ 3.
Nonrandomized, retrospective, comparative, and single-center trial. ⋯ 3.
Retrospective case series. ⋯ 4.