Spine
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A retrospective study. ⋯ 4.
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Observational Study
Long-Term Course of Alternative and Integrative Therapy for Lumbar Disc Herniation and Risk Factors for Surgery: A Prospective Observational 5-Year Follow-Up Study.
Prospective observational 5-year study. ⋯ 2.
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A retrospective review. ⋯ 4.