New paper and New editorial on tDCS Safety
Jackson MP, Truong D, Brownlow ML, Wagner JA, McKinley RA, Bikson M, Jankord R. Safety parameter considerations of anodal transcranial Direct Current Stimulation in rats. Brain, Behavior, and Immunity 2017 pii: S0889-1591(17)30110-1. doi: 10.1016/j.bbi.2017.04.008 PDF
Nitsche M. Bikson M. Extending the parameter range for tDCS: Safety and tolerability of 4 mA stimulation. Brain Stimulation. Editorial, Volume 10, Issue 3, Pages 541–542, 2017 PDF
And don’t forget our seminal 2016 safety review here