Affiliation: | 1. Department of Cardiology, Patras University Hospital, , Patras, Greece;2. Department of Cardiology, Athens General Hospital “G. Gennimatas”, , Athens, Greece;3. Department of Cardiology, Larissa University Hospital, , Larissa, Greece;4. Department of Cardiology, Alexandra General Hospital, , Athens, Greece;5. Department of Cardiology, Iraklion University Hospital, , Iraklion, Greece;6. 1st Department of Cardiology, Ippokration General Hospital, , Athens, Greece;7. Department of Cardiology, Ioannina University Hospital, , Ioannina, Greece |