Long-term efficacy of a double-blind, placebo-controlled, randomized study for repetitive sphenopalatine blockade with bupivacaine vs. saline with the Tx360 device for treatment of chronic migraine.

Headache · 2015 · PMC6681144 · PMID 25828648

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did not reach statistical significanceno p-value reported

The supplemental secondary end‐points reported in this manuscript did not reach statistical significance.

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