author: Moraitis, Konstantinos_or_Kontogeorgis, Aristeidis_or_Antoniadis, Ioannis_or_Gitzenis, Savvas_or_Cheliotis, Dimitrios_or_Παγουρτζής, Αριστείδης__elsubjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_IV. MEDICINE AND HEALTH SCIENCES, LIFE SCIENCES, BIOLOGICAL SCIENCES