Nanas, JN Papazoglou, P Tsagalou, EP Ntalianis, A and Tsolakis, E Terrovitis, JV Kanakakis, J Nanas, SN and Alexopoulos, GP Anastasiou-Nana, MI, Efficacy and safety of intermittent, long-term, concomitant dobutamine and levosimendan infusions in severe heart failure refractory to dobutamine alone, AMERICAN JOURNAL OF CARDIOLOGY, (95), 768-771, 2005, Excerpta Medica Inc., 0002-9149