Spine
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Experimental study of spinal rod as per the American Society for Testing Materials (ASTM) F2193 methodology for static and dynamic four-point bending. ⋯ N/A.
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Online survey. ⋯ 3.
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Retrospective cohort study. ⋯ 3.
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Retrospective study. ⋯ 4.
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Retrospective cohort study, Level of Evidence III. ⋯ 3.