Spine
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Abnormal findings on magnetic resonance images of the cervical spines in 1211 asymptomatic subjects.
Cross-sectional study. ⋯ 2.
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Randomized experimental study. ⋯ NA.
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Clinical trial for midcervical pedicle screw insertion using a novel patient-specific intraoperative screw guiding device. ⋯ 3.
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Within-study cost-utility analysis. ⋯ 2.
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Cohort study. ⋯ 3.