Effect of valproate on oscillatory delta frequency responses to visual stimuli in a group of euthymic bipolar patients in comparison to healthy controls - Özerdem, Ayşegül; Kocaaslan, Sibel; Tunca, Zeliha; BAŞAR, EROL (Elsevier Science Inc, 360 Park Ave South, New York, Ny 10010-1710 USA, 2007)