type: 7_or_203subjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_IV. MEDICINE AND HEALTH SCIENCES, LIFE SCIENCES, BIOLOGICAL SCIENCESauthor: Plageras, Panagiotis_or_Kroupis, Christos_or_Spyropoulos, Vasileios_or_Perivolaropoulos, Leandros_or_Σπυρόπουλος, Βασίλειος__el