Spine
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Randomized Controlled Trial
Long-term Clinical Outcomes of Cervical Disc Arthroplasty: A Prospective, Randomized, Controlled Trial.
Prospective, randomized, single-center, clinical trial. ⋯ 1.
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Clinical Trial
Healthy Physical Activity Levels Below Recommended Thresholds Two Years After Lumbar Spine Surgery.
Prospective analysis. ⋯ 3.
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Retrospective review of prospectively collected data. ⋯ 4.