author: Zachos, Efstathios_or_Zoi, Georgiou_or_Spyropoulos, Vasileios_or_Pagourtzis, Aristeidis_or_Michalopoulos, Andreas__enlang: eltype: 7subjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_IV. MEDICINE AND HEALTH SCIENCES, LIFE SCIENCES, BIOLOGICAL SCIENCES