1. Faculty of Medicine and Life Sciences, UHasselt—Hasselt University, Agoralaan, 3590 Diepenbeek, Belgium
2. Department of Cardiothoracic Surgery, Jessa Hospital, Stadsomvaart 11, 3500 Hasselt, Belgium
3. Department of Anesthesiology, Jessa Hospital, Stadsomvaart 11, 3500 Hasselt, Belgium