author: Zachos, Efstathios_or_Kroupis, Christos_or_Spyropoulos, Vasileios_or_Pagourtzis, Aristeidis_or_Λιανός, Θεόδωρος__elsubjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_IV. MEDICINE AND HEALTH SCIENCES, LIFE SCIENCES, BIOLOGICAL SCIENCESlang: el