Altered cortical causality after remifentanil administration in healthy volunteers: A novel approach for pharmaco-EEG. - Ahmad Khodayari-Rostamabad; Carina Graversen; Søren Schou Olesen; Lasse P. Malver; Geana P. Kurita; Per Sjogren; Lona L. Christrup; Asbjørn Mohr Drewes (EMBC, 2014)