type: 7author: Gitzenis, Savvas_or_Toumpis, Stavros_or_Kokkorogiannis, Theodoros_or_Giannakouris, Nikolaos_or_Fylaktakidou, Konstantina_or_Giannakouris, Nikolaos__ensubjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_IV. MEDICINE AND HEALTH SCIENCES, LIFE SCIENCES, BIOLOGICAL SCIENCES