1. Department of Surgery, University Hospital Královské Vinohrady, Third Faculty of Medicine, Charles University, Prague, Czech Republic.
2. Cardiocenter, University Hospital Královské Vinohrady, Third Faculty of Medicine, Charles University, Prague, Czech Republic.
3. Department of Anaesthesiology and Resuscitation, University Hospital Královské Vinohrady, Third Faculty of Medicine, Charles University, Prague, Czech Republic.
4. Department of Vascular Surgery, National Institute for Cardiovascular Diseases, Bratislava, Slovak Republic.
5. Faculty of Biomedical Engineering Czech Technical University in Prague, Kladno, Czech Republic.
6. Department of Surgery I, Faculty of Medicine and Dentistry, Palacký University and University Hospital Olomouc, Czech Republic.
7. Department of Surgery, The University Hospital Brno, Czech Republic.
8. Department of Surgery, First Faculty of Medicine, Charles University and Thomayer University Hospital, Prague, Czech Republic.