1. Department of Nutrition and Dietetics, School of Health Sciences & Education, Harokopio University, 17676 Athens, Greece
2. Department of Clinical Dietetics-Nutrition, HYGEIA Hospital, 15123 Athens, Greece
3. Department of Internal Medicine, Medical School, University of Ioannina, 45500 Ioannina, Greece
4. First Department of Propaedeutic Internal Medicine, Medical School, National and Kapodistrian University of Athens, Laiko General Hospital, 15772 Athens, Greece
5. First Cardiology Clinic, Medical School, National and Kapodistrian University of Athens, Hippokration Hospital, 11527 Athens, Greece