type: 103_or_102author: Gitzenis, Savvas_or_Tzanakis, Georgios_or_Kefalas, Petros_or_Bertachas, Ioannis_or_Kolettis, Theofilos_or_Toumpis, StavrossubjectTerm: IV. MEDICINE AND HEALTH SCIENCES, LIFE SCIENCES, BIOLOGICAL SCIENCES_or_I. MATHEMATICS AND COMPUTER SCIENCE