1. 3rd Department of Cardiology, Sotiria Thoracic Diseases General Hospital, National and Kapodistrian University
of Athens, Athens, Greece
2. Department of Cardiology, Medical University of Graz, Graz, Austria
3. Laboratory of Experimental Surgery and Surgical Research ‘N.S. Christeas’, National and Kapodistrian
University of Athens, Medical School, Athens, Greece