Spine
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Retrospective clinical study. ⋯ 4.
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An intra- and interobserver reliability study. ⋯ 3.
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Retrospective case-control study. ⋯ 4.
Retrospective clinical study. ⋯ 4.
An intra- and interobserver reliability study. ⋯ 3.
Retrospective case-control study. ⋯ 4.