Spine
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A retrospective study. ⋯ 3.
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Comparative Study
Comparing Health Related Quality of Life Outcomes in Patients Undergoing Either Primary or Revision Anterior Cervical Discectomy and Fusion.
A retrospective review of prospectively collected data. ⋯ 2.
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A retrospective review (2001-2014) was conducted using prospectively collected data at a level I trauma center. ⋯ 3.
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Retrospective cohort study. ⋯ 3.
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A retrospective review of radiographic data and functional outcomes. ⋯ 3.