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TFS
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TFS is the acronym for transcranial focal electrical stimulation. TFS is a unique, noninvasive, and focal stimulation modality utilizing novel concentric ring electrodes (CREs). TFS via CREs has a uniform current density and focused stimulation directly below the electrodes with a very steep electric field, which is an advantage over transcranial direct-current stimulation (tDCS) or other transcranial stimulation methods.