Silva, R. de M. F. da, A. R. Brunoni, E. C. Miguel, and R. G. Shavitt. “Transcranial Direct Current Stimulation for Treatment-Resistant Obsessive-Compulsive Disorder: Report on Two Cases and Proposal for a Randomized, Sham-Controlled Trial”. São Paulo Medical Journal, vol. 134, no. 5, Oct. 2016, pp. 446-50, https://periodicosapm.emnuvens.com.br/spmj/article/view/1115.