Fig. 2From: Practical and clinical utility of non-invasive vagus nerve stimulation (nVNS) for the acute treatment of migraine: a post hoc analysis of the randomized, sham-controlled, double-blind PRESTO trialPRESTO Treatment Paradigm. Abbreviations: L, left; nVNS, non-invasive vagus nerve stimulation; R, right; Stim, stimulationBack to article page