author: Bertachas, Ioannis_or_Michelaki, Paraskevi_or_Giannakouris, Nikolaos_or_Tzanakis, Georgios_or_Toumpis, Stavros_or_Γιαννακούρης, Νικόλαος__elsubjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_IV. MEDICINE AND HEALTH SCIENCES, LIFE SCIENCES, BIOLOGICAL SCIENCES