Spine
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Cross-sectional observational study on the relationship between the degrees of disc degeneration and sagittal alignment in asymptomatic healthy individuals. ⋯ 3.
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Retrospective cohort analysis. ⋯ 4.
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A retrospective study. ⋯ 4.
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A prospective case series study. ⋯ 4.
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A prospective study of anterior transarticular screw (ATS) fixation patients. ⋯ 3.