Depth of anesthesia by Narcotrend® and postoperative characteristics in children undergoing cardiac surgery under extracorporeal circulation: a retrospective comparison of two anesthetic regimens - Plaschke, Konstanze; Weiskircher, Anne; Benner, Laura; Klein, Bertold; Loukanov, Tsvetomir; Gorenflo, Matthias; Weigand, Markus A.; Rauch, Helmut (Sage, 2020)