Stutter and tDCS

Stutter and tDCS Hi sub, I found this article and wanted to know what you thought about it If there is really a chance that it will help or is it just another possible treatment [https://www.sciencedirect.com/science/article/pii/S0093934X15302005](https://www.sciencedirect.com/science/article/pii/S0093934X15302005)