Spine
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Retrospective cohort study. ⋯ 4.
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A retrospective case series study with at least 10 years of follow-up data. ⋯ 3.
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Prospective cohort study. ⋯ 3.
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Multicenter Study
Should Sagittal Spinal Alignment Targets for Adult Spinal Deformity Correction Depend on Pelvic Incidence and Age?
Retrospective analysis. ⋯ 3.