Spine
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Prospective cohort study. ⋯ 3.
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A cross-sectional survey. ⋯ 2.
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A cross-sectional survey of surgeon members of the Scoliosis Research Society (SRS). ⋯ 4.
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A prospective cohort. ⋯ 2.
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Observational study using a retrospective single-institute database. ⋯ 4.