1 Department of Cardiovascular Surgery, Institute for Clinical and Experimental Medicine, Prague, Czech Republic; Department of Cardiovascular Surgery, Second Faculty of Medicine, Charles University, Prague, Czech Republic.
2 Department of Cardiovascular Surgery, Institute for Clinical and Experimental Medicine, Prague, Czech Republic; Third Faculty of Medicine, Charles University, Prague, Czech Republic. Electronic address: peter.ivak@ikem.cz.
3 Department of Cardiovascular Surgery, Institute for Clinical and Experimental Medicine, Prague, Czech Republic; Second Department of Surgery, Department of Cardiovascular Surgery, First Faculty of Medicine, Charles University, Prague, Czech Republic.
4 Department of Cardiovascular Surgery, Institute for Clinical and Experimental Medicine, Prague, Czech Republic.
5 Abbott Laboratories, Santa Clara, California, USA.
6 Montefiore Medical Center, Albert Einstein College of Medicine, New York, New York, USA.