AUTHOR=Yoon Yang-soo , Hwang Byungkwan , Coltisor Allison TITLE=Commentary: Comparison of the Long-Term Effect of Positioning the Cathode in tDCS in Tinnitus Patients JOURNAL=Frontiers in Aging Neuroscience VOLUME=9 YEAR=2018 URL=https://www.frontiersin.org/journals/aging-neuroscience/articles/10.3389/fnagi.2017.00443 DOI=10.3389/fnagi.2017.00443 ISSN=1663-4365