Spine
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A post-test design biological experiment. ⋯ N/A.
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The lumbar facet joint (LFJ) osteoarthritis (OA) model that highly mimics the clinical conditions was established and evaluated. ⋯ N/A.
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A retrospective review of prospectively collected data. ⋯ 3.
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Case-control study. ⋯ 3.