AUTHOR=Schwiedrzik Caspar M. TITLE=Retina or visual cortex? The site of phosphene induction by transcranial alternating current stimulation JOURNAL=Frontiers in Integrative Neuroscience VOLUME=3 YEAR=2009 URL=https://www.frontiersin.org/journals/integrative-neuroscience/articles/10.3389/neuro.07.006.2009 DOI=10.3389/neuro.07.006.2009 ISSN=1662-5145