Intravenous levosimendan-norepinephrine combination during off-pump coronary artery bypass grafting in a hemodialysis patient with severe myocardial dysfunction - Papadopoulos, Georgios; Baikoussis, Nikolaos G; Tzimas, Petros; Siminelakis, Stavros N; Karanikolas, Menelaos (2012)