Spine
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Retrospective review of a multicenter database. ⋯ 4.
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In vivo analysis of insertional torque of pedicle screws using cortical bone trajectory (CBT) technique. ⋯ 2.
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Longitudinal cohort study of twins representative of the general population. ⋯ 2.
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Mechanical and microcomputed tomography (micro-CT) study of cadaver spines. ⋯ N/A.