Surface EEG-Transcranial Direct Current Stimulation (tDCS) Closed-Loop System. - Jorge Leite; Leon Morales-Quezada; Sandra Carvalho 001; Aurore Thibaut; Deniz Doruk; Chiun-Fan Chen; Steven Schachter; Alexander Rotenberg; Felipe Fregni (Int. J. Neural Syst., 2017)