A prospective, randomized, controlled, double-blind, multi-center study to evaluate the efficacy and safety of a blue light device for the treatment of chronic back pain.

Front Pain Res (Lausanne) · 2024 · PMC11300367 · PMID 39109241

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did not reach statistical significanceno p-value reported

A trend favoring PRP was observed for visits 1, 2, 4, and 5, but it did not reach statistical significance.

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