Spine
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A retrospective study. ⋯ 4.
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Retrospective database review. ⋯ 4.
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Randomized Controlled Trial
Explaining How Cognitive Behavioral Approaches Work for Low Back Pain: Mediation Analysis of the Back Skills Training Trial.
This is secondary research examining the longitudinal mediation effect within a structural equation model. ⋯ 2.
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A cross-sectional and longitudinal analysis using two different datasets. ⋯ 2.