type: 7author: Spyropoulos, Vasileios_or_Promponas, Antonios_or_Κοντογεώργης, Αριστείδης__elsubjectTerm: II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES_or_I. MATHEMATICS AND COMPUTER SCIENCE_or_IV. MEDICINE AND HEALTH SCIENCES, LIFE SCIENCES, BIOLOGICAL SCIENCES