1. Department of Nutrition and Dietetics, School of Health Sciences and Education Harokopio University of Athens Athens Greece
2. First Cardiology Clinic, Medical School National and Kapodistrian University of Athens, Hippokration Hospital Athens Greece
3. Department of Internal Medicine, Medical School University of Ioannina Ioannina Greece
4. First Department of Propaedeutic Internal Medicine, Medical School National and Kapodistrian University of Athens, Laiko General Hospital Athens Greece