Enhancement of Affective Processing Induced by Bifrontal Transcranial Direct Current Stimulation in Patients With Major Depression - Brunoni, Andre Russowsky; Zanao, Tamires Araujo; Vanderhasselt, Marie-Anne; Valiengo, Leandro; Oliveira, Janaina Farias de; Boggio, Paulo S.; Lotufo, Paulo A.; Benseñor, Isabela M.; Fregni, Felipe (Neuromodulation, 2014)