Multicolumn spinal cord stimulation for predominant back pain in failed back surgery syndrome patients: a multicenter randomized controlled trial.

Pain · 2019 · PMC6553955 · PMID 30720582

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hedged sentence

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closest p

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boldest claim

The sentences

approached significanceno p-value reported

If the interaction term approached significance (defined as <0.10), that term remained in the final model with the term for site.

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