Spine
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Observational Study
Epidural Abscess: A Propensity Analysis of Surgical Treatment Strategies.
Observational analysis of retrospectively collected data. ⋯ 3.
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Randomized Controlled Trial Comparative Study
Adjacent Disc Degeneration After Lumbar Total Disc Replacement or Non-operative Treatment: A Randomized Study With Eight-year Follow-up.
A randomized controlled multicenter trial with 8-year follow-up. ⋯ 1.
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Retrospective cohort utilizing the National Inpatient Sample (NIS) 2003 to 2014. ⋯ 3.
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A retrospective case series. ⋯ 4.