1. TEI of Lamia, Lamia, Greece
2. Department of Cardiology, Larissa University Hospital, P.O. Box 1425, 411 10 Larissa, Greece
3. Department of Neurology, Larissa University Hospital, 411 10 Larissa, Greece
4. Department of Cardiovascular and Thoracic Surgery, Larissa University Hospital, 411 10 Larissa, Greece
5. Department of Nuclear Medicine, Larissa University Hospital, 411 10 Larissa, Greece
6. Department of Psychiatry, Larissa University Hospital, 411 10 Larissa, Greece
7. Department of Vascular Surgery, Larissa University Hospital, 411 10 Larissa, Greece
8. Nursing Department Bʼ, TEI of Athens, Athens, Greece
9. Division of Cardiology, Emory University Hospital, Atlanta, GA, USA