1. Laboratory for Experimental Surgery and Surgical Research “N.S. Christeas”, Athens Medical School, National and Kapodistrian University of Athens, 115 27 Athens, Greece
2. Second Department of Cardiology, National and Kapodistrian University of Athens, 115 27 Athens, Greece
3. Cardiology Department, General Hospital of Chalkida, 341 00 Chalkida, Greece
4. Protatonce Ltd., Demokritos Science Park, 153 43 Athens, Greece
5. Department of Mechanical Engineering, National Technical University of Athens, 106 82 Athens, Greece
6. Department of Cardiology, G. Gennimatas, General Hospital of Athens, 115 27 Athens, Greece
7. School of Medicine, Witten/Herdecke University, 58455 Witten, Germany
8. Second Department of Propedeutic Surgery, Laiko General Hospital, School of Medicine, National and Kapodistrian University of Athens, 115 27 Athens, Greece
9. Third Department of Cardiology, National and Kapodistrian University of Athens, 115 27 Athens, Greece