author: Manis, Georgios_or_Papanikolaou, Georgios_or_Toumpis, Stavros_or_Gitzenis, Savvas_or_Perivolaropoulos, Leandros_or_Γιαννακούρης, Νικόλαος__elsubjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_IV. MEDICINE AND HEALTH SCIENCES, LIFE SCIENCES, BIOLOGICAL SCIENCES_or_II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES