Spine
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Retrospective survival analysis of 44 undifferentiated high grade pleomorphic sarcoma (UPS) of the spine. ⋯ 4.
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Retrospective analysis. ⋯ 3.
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Retrospective review of prospective cohort. ⋯ 3.
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An experimental animal study of osteoporosis (OP) and intervertebral disc degeneration (IDD). ⋯ N/A.