1 1st Cardiology Clinic, 'Hippokration' General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece. Electronic address: glaz35@hotmail.com.
2 1st Cardiology Clinic, 'Hippokration' General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece; Emergency Department, Hippokration' General Hospital, Athens, Greece.
3 1st Cardiology Clinic, 'Hippokration' General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece.
4 Emergency Department, Hippokration' General Hospital, Athens, Greece.
5 Department of Cardiac Surgery, Hippokration General Hospital, Athens, Greece.
6 Department of Cardiothoracic Surgery, "Evangelismos" General Hospital of Athens, Athens, Greece.
7 1st Cardiology Clinic, 'Hippokration' General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece; Cardiovascular Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.