Spine
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Level I trauma center case series. ⋯ 3.
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A retrospective study. ⋯ 4.
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Meta-analysis of individual patient data from randomized controlled trials of recombinant human bone morphogenetic protein-2 (rhBMP-2) in lumbar spinal fusion. ⋯ 1.
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Retrospective review of prospective multicenter database. ⋯ 3.
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A prospective, single-arm, pre-postintervention study. ⋯ 4.