1 Hellenic Cardiological Society, Athens, Greece; 1st Department of Cardiology, National and Kapodistrian University of Athens, "Hippocration" General Hospital, Athens, Greece.
2 1st Department of Cardiology, National and Kapodistrian University of Athens, "Hippocration" General Hospital, Athens, Greece.
3 Hellenic Cardiological Society, Athens, Greece; President HCS, Catheterization Laboratory, "Alexandra" General Hospital, Athens, Greece. Electronic address: [email protected].