Spine
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A mechanism-based reasoning and retrospective cohort study. ⋯ 4.
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Survey analysis among spine surgeons. ⋯ 4.
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Comparative Study
Preoperative Risk Stratification in Spine Tumor Surgery: A Comparison of the Modified Charlson Index, Frailty Index, and ASA Score.
A retrospective review of prospectively collected data. ⋯ 3.
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Retrospective review of prospectively-collected, multicenter adult spinal deformity (ASD) databases. ⋯ 4.