Spine
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Multivariate analysis. ⋯ 3.
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Retrospective radiographical review. ⋯ 2.
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Prospective, nonrandomized study of children with congenital scoliosis. ⋯ 2.
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Retrospective database review. ⋯ 3.
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Review Comparative Study
Is minimal access spine surgery more cost-effective than conventional spine surgery?
Systematic review. ⋯ 3.