Spine
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Multicenter Study
Impact of Chronic DMARD therapy in Patients with Rheumatoid Arthritis undergoing Surgery of the Craniovertebral Junction: A Multi-center Retrospective Study.
A multi-centered retrospective review from five institutions. ⋯ 3.
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Case-control study. ⋯ 4.
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Biochemical and immunohistochemical analyses by the human intervertebral disc (IVD) cells and tissues. ⋯ N/A.