Spine
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Retrospective cohort study among Medicare beneficiaries with lumbar spinal fusion surgery. ⋯ 4.
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Case series study. ⋯ 4.
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A retrospective review. ⋯ 4.
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Compression biomechanical tests using fresh cadaveric thoracolumbar motion segments. ⋯ N/A.
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Case report of a patient with atlantoaxial subluxation who underwent posterior cervical fixation. ⋯ N/A.