1. 3rd Internal Medicine Department-Infectious Diseases Unit, Red Cross General Hospital, Athens, Greece.
2. Faculty of Chemistry, National and Capodistrian University of Athens, Athens, Greece.
3. Department of Science Nutrition-Dietetics, Harokopio University, Athens, Greece.
4. 1st Internal Medicine Department-Infectious Diseases Unit, “G. Gennimatas” Hospital, Athens, Greece.