Affiliation: | 1. Department of Cardiology, “Sotiria” Hospital for Chest Diseases, Athens, Greece;2. First Department of Critical Care, School of Health Science, National and Kapodistrian University of Athens, “Evangelismos” Hospital, Athens, Greece;3. Department of Cardiology, School of Health Science, National and Kapodistrian University of Athens, “Attikon” Hospital, Athens, Greece |