Spine
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Randomized Controlled Trial Comparative Study
Comparison of spinal manipulation methods and usual medical care for acute and subacute low back pain: a randomized clinical trial.
Randomized controlled trial with follow-up to 6 months. ⋯ 2.
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A retrospective study. ⋯ 1.
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Observational cross-sectional population study using national sample of pediatric hospital discharges from 2000 to 2009. ⋯ 4.
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Retrospective analysis. ⋯ 3.